diff options
Diffstat (limited to 'runsc')
-rw-r--r-- | runsc/boot/BUILD | 1 | ||||
-rw-r--r-- | runsc/cmd/BUILD | 2 | ||||
-rw-r--r-- | runsc/cmd/capability_test.go | 9 | ||||
-rw-r--r-- | runsc/container/BUILD | 6 | ||||
-rw-r--r-- | runsc/container/console_test.go | 115 | ||||
-rw-r--r-- | runsc/container/container.go | 2 | ||||
-rw-r--r-- | runsc/container/container_norace_test.go | 20 | ||||
-rw-r--r-- | runsc/container/container_race_test.go | 20 | ||||
-rw-r--r-- | runsc/container/container_test.go | 2046 | ||||
-rw-r--r-- | runsc/container/multi_container_test.go | 1161 | ||||
-rw-r--r-- | runsc/container/shared_volume_test.go | 18 | ||||
-rw-r--r-- | runsc/container/test_app/BUILD | 21 | ||||
-rw-r--r-- | runsc/container/test_app/fds.go | 185 | ||||
-rw-r--r-- | runsc/container/test_app/test_app.go | 394 | ||||
-rw-r--r-- | runsc/criutil/BUILD | 11 | ||||
-rw-r--r-- | runsc/criutil/criutil.go | 277 | ||||
-rw-r--r-- | runsc/dockerutil/BUILD | 14 | ||||
-rw-r--r-- | runsc/dockerutil/dockerutil.go | 486 | ||||
-rw-r--r-- | runsc/testutil/BUILD | 21 | ||||
-rw-r--r-- | runsc/testutil/testutil.go | 433 | ||||
-rw-r--r-- | runsc/testutil/testutil_runfiles.go | 75 |
21 files changed, 1711 insertions, 3606 deletions
diff --git a/runsc/boot/BUILD b/runsc/boot/BUILD index 72c2fe381..69dcc74f2 100644 --- a/runsc/boot/BUILD +++ b/runsc/boot/BUILD @@ -23,6 +23,7 @@ go_library( "vfs.go", ], visibility = [ + "//pkg/test:__subpackages__", "//runsc:__subpackages__", "//test:__subpackages__", ], diff --git a/runsc/cmd/BUILD b/runsc/cmd/BUILD index 4900fbe16..af3538ef0 100644 --- a/runsc/cmd/BUILD +++ b/runsc/cmd/BUILD @@ -82,11 +82,11 @@ go_test( "//pkg/log", "//pkg/sentry/control", "//pkg/sentry/kernel/auth", + "//pkg/test/testutil", "//pkg/urpc", "//runsc/boot", "//runsc/container", "//runsc/specutils", - "//runsc/testutil", "@com_github_google_go-cmp//cmp:go_default_library", "@com_github_google_go-cmp//cmp/cmpopts:go_default_library", "@com_github_opencontainers_runtime-spec//specs-go:go_default_library", diff --git a/runsc/cmd/capability_test.go b/runsc/cmd/capability_test.go index 9360d7442..a84067112 100644 --- a/runsc/cmd/capability_test.go +++ b/runsc/cmd/capability_test.go @@ -23,10 +23,10 @@ import ( specs "github.com/opencontainers/runtime-spec/specs-go" "github.com/syndtr/gocapability/capability" "gvisor.dev/gvisor/pkg/log" + "gvisor.dev/gvisor/pkg/test/testutil" "gvisor.dev/gvisor/runsc/boot" "gvisor.dev/gvisor/runsc/container" "gvisor.dev/gvisor/runsc/specutils" - "gvisor.dev/gvisor/runsc/testutil" ) func init() { @@ -90,16 +90,15 @@ func TestCapabilities(t *testing.T) { // Use --network=host to make sandbox use spec's capabilities. conf.Network = boot.NetworkHost - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := container.Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } diff --git a/runsc/container/BUILD b/runsc/container/BUILD index 0aaeea3a8..331b8e866 100644 --- a/runsc/container/BUILD +++ b/runsc/container/BUILD @@ -33,13 +33,15 @@ go_test( size = "large", srcs = [ "console_test.go", + "container_norace_test.go", + "container_race_test.go", "container_test.go", "multi_container_test.go", "shared_volume_test.go", ], data = [ "//runsc", - "//runsc/container/test_app", + "//test/cmd/test_app", ], library = ":container", shard_count = 5, @@ -54,12 +56,12 @@ go_test( "//pkg/sentry/kernel", "//pkg/sentry/kernel/auth", "//pkg/sync", + "//pkg/test/testutil", "//pkg/unet", "//pkg/urpc", "//runsc/boot", "//runsc/boot/platforms", "//runsc/specutils", - "//runsc/testutil", "@com_github_cenkalti_backoff//:go_default_library", "@com_github_kr_pty//:go_default_library", "@com_github_opencontainers_runtime-spec//specs-go:go_default_library", diff --git a/runsc/container/console_test.go b/runsc/container/console_test.go index af245b6d8..294dca5e7 100644 --- a/runsc/container/console_test.go +++ b/runsc/container/console_test.go @@ -29,9 +29,9 @@ import ( "gvisor.dev/gvisor/pkg/sentry/control" "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sync" + "gvisor.dev/gvisor/pkg/test/testutil" "gvisor.dev/gvisor/pkg/unet" "gvisor.dev/gvisor/pkg/urpc" - "gvisor.dev/gvisor/runsc/testutil" ) // socketPath creates a path inside bundleDir and ensures that the returned @@ -58,25 +58,26 @@ func socketPath(bundleDir string) (string, error) { } // createConsoleSocket creates a socket at the given path that will receive a -// console fd from the sandbox. If no error occurs, it returns the server -// socket and a cleanup function. -func createConsoleSocket(path string) (*unet.ServerSocket, func() error, error) { +// console fd from the sandbox. If an error occurs, t.Fatalf will be called. +// The function returning should be deferred as cleanup. +func createConsoleSocket(t *testing.T, path string) (*unet.ServerSocket, func()) { + t.Helper() srv, err := unet.BindAndListen(path, false) if err != nil { - return nil, nil, fmt.Errorf("error binding and listening to socket %q: %v", path, err) + t.Fatalf("error binding and listening to socket %q: %v", path, err) } - cleanup := func() error { + cleanup := func() { + // Log errors; nothing can be done. if err := srv.Close(); err != nil { - return fmt.Errorf("error closing socket %q: %v", path, err) + t.Logf("error closing socket %q: %v", path, err) } if err := os.Remove(path); err != nil { - return fmt.Errorf("error removing socket %q: %v", path, err) + t.Logf("error removing socket %q: %v", path, err) } - return nil } - return srv, cleanup, nil + return srv, cleanup } // receiveConsolePTY accepts a connection on the server socket and reads fds. @@ -118,45 +119,42 @@ func receiveConsolePTY(srv *unet.ServerSocket) (*os.File, error) { // Test that an pty FD is sent over the console socket if one is provided. func TestConsoleSocket(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - spec := testutil.NewSpecWithArgs("true") - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + spec := testutil.NewSpecWithArgs("true") + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - sock, err := socketPath(bundleDir) - if err != nil { - t.Fatalf("error getting socket path: %v", err) - } - srv, cleanup, err := createConsoleSocket(sock) - if err != nil { - t.Fatalf("error creating socket at %q: %v", sock, err) - } - defer cleanup() - - // Create the container and pass the socket name. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - ConsoleSocket: sock, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() + sock, err := socketPath(bundleDir) + if err != nil { + t.Fatalf("error getting socket path: %v", err) + } + srv, cleanup := createConsoleSocket(t, sock) + defer cleanup() + + // Create the container and pass the socket name. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + ConsoleSocket: sock, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() - // Make sure we get a console PTY. - ptyMaster, err := receiveConsolePTY(srv) - if err != nil { - t.Fatalf("error receiving console FD: %v", err) - } - ptyMaster.Close() + // Make sure we get a console PTY. + ptyMaster, err := receiveConsolePTY(srv) + if err != nil { + t.Fatalf("error receiving console FD: %v", err) + } + ptyMaster.Close() + }) } } @@ -165,16 +163,15 @@ func TestJobControlSignalExec(t *testing.T) { spec := testutil.NewSpecWithArgs("/bin/sleep", "10000") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -292,26 +289,22 @@ func TestJobControlSignalRootContainer(t *testing.T) { spec := testutil.NewSpecWithArgs("/bin/bash", "--noprofile", "--norc") spec.Process.Terminal = true - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() sock, err := socketPath(bundleDir) if err != nil { t.Fatalf("error getting socket path: %v", err) } - srv, cleanup, err := createConsoleSocket(sock) - if err != nil { - t.Fatalf("error creating socket at %q: %v", sock, err) - } + srv, cleanup := createConsoleSocket(t, sock) defer cleanup() // Create the container and pass the socket name. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, ConsoleSocket: sock, @@ -368,7 +361,7 @@ func TestJobControlSignalRootContainer(t *testing.T) { {PID: 1, Cmd: "bash", Threads: []kernel.ThreadID{1}}, } if err := waitForProcessList(c, expectedPL); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } // Execute sleep via the terminal. @@ -377,7 +370,7 @@ func TestJobControlSignalRootContainer(t *testing.T) { // Wait for sleep to start. expectedPL = append(expectedPL, &control.Process{PID: 2, PPID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{2}}) if err := waitForProcessList(c, expectedPL); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } // Reset the pty buffer, so there is less output for us to scan later. diff --git a/runsc/container/container.go b/runsc/container/container.go index 7233659b1..117ea7d7b 100644 --- a/runsc/container/container.go +++ b/runsc/container/container.go @@ -274,7 +274,7 @@ func New(conf *boot.Config, args Args) (*Container, error) { } if err := os.MkdirAll(conf.RootDir, 0711); err != nil { - return nil, fmt.Errorf("creating container root directory: %v", err) + return nil, fmt.Errorf("creating container root directory %q: %v", conf.RootDir, err) } c := &Container{ diff --git a/runsc/container/container_norace_test.go b/runsc/container/container_norace_test.go new file mode 100644 index 000000000..838c1e20a --- /dev/null +++ b/runsc/container/container_norace_test.go @@ -0,0 +1,20 @@ +// Copyright 2018 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build !race + +package container + +// Allow both kvm and ptrace for non-race builds. +var platformOptions = []configOption{ptrace, kvm} diff --git a/runsc/container/container_race_test.go b/runsc/container/container_race_test.go new file mode 100644 index 000000000..9fb4c4fc0 --- /dev/null +++ b/runsc/container/container_race_test.go @@ -0,0 +1,20 @@ +// Copyright 2018 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build race + +package container + +// Only enabled ptrace with race builds. +var platformOptions = []configOption{ptrace} diff --git a/runsc/container/container_test.go b/runsc/container/container_test.go index 5db6d64aa..3ff89f38c 100644 --- a/runsc/container/container_test.go +++ b/runsc/container/container_test.go @@ -39,10 +39,10 @@ import ( "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sentry/kernel/auth" "gvisor.dev/gvisor/pkg/sync" + "gvisor.dev/gvisor/pkg/test/testutil" "gvisor.dev/gvisor/runsc/boot" "gvisor.dev/gvisor/runsc/boot/platforms" "gvisor.dev/gvisor/runsc/specutils" - "gvisor.dev/gvisor/runsc/testutil" ) // waitForProcessList waits for the given process list to show up in the container. @@ -215,16 +215,15 @@ func readOutputNum(file string, position int) (int, error) { // run starts the sandbox and waits for it to exit, checking that the // application succeeded. func run(spec *specs.Spec, conf *boot.Config) error { - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { return fmt.Errorf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create, start and wait for the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, Attached: true, @@ -243,35 +242,41 @@ type configOption int const ( overlay configOption = iota + ptrace kvm nonExclusiveFS ) -var noOverlay = []configOption{kvm, nonExclusiveFS} -var all = append(noOverlay, overlay) +var ( + noOverlay = append(platformOptions, nonExclusiveFS) + all = append(noOverlay, overlay) +) // configs generates different configurations to run tests. -func configs(t *testing.T, opts ...configOption) []*boot.Config { +func configs(t *testing.T, opts ...configOption) map[string]*boot.Config { // Always load the default config. - cs := []*boot.Config{testutil.TestConfig(t)} - + cs := make(map[string]*boot.Config) for _, o := range opts { - c := testutil.TestConfig(t) switch o { case overlay: + c := testutil.TestConfig(t) c.Overlay = true + cs["overlay"] = c + case ptrace: + c := testutil.TestConfig(t) + c.Platform = platforms.Ptrace + cs["ptrace"] = c case kvm: - // TODO(b/112165693): KVM tests are flaky. Disable until fixed. - continue - + c := testutil.TestConfig(t) c.Platform = platforms.KVM + cs["kvm"] = c case nonExclusiveFS: + c := testutil.TestConfig(t) c.FileAccess = boot.FileAccessShared + cs["non-exclusive"] = c default: panic(fmt.Sprintf("unknown config option %v", o)) - } - cs = append(cs, c) } return cs } @@ -285,133 +290,133 @@ func TestLifecycle(t *testing.T) { childReaper.Start() defer childReaper.Stop() - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - // The container will just sleep for a long time. We will kill it before - // it finishes sleeping. - spec := testutil.NewSpecWithArgs("sleep", "100") + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + // The container will just sleep for a long time. We will kill it before + // it finishes sleeping. + spec := testutil.NewSpecWithArgs("sleep", "100") - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) - - // expectedPL lists the expected process state of the container. - expectedPL := []*control.Process{ - { - UID: 0, - PID: 1, - PPID: 0, - C: 0, - Cmd: "sleep", - Threads: []kernel.ThreadID{1}, - }, - } - // Create the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() - - // Load the container from disk and check the status. - c, err = Load(rootDir, args.ID) - if err != nil { - t.Fatalf("error loading container: %v", err) - } - if got, want := c.Status, Created; got != want { - t.Errorf("container status got %v, want %v", got, want) - } + rootDir, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // List should return the container id. - ids, err := List(rootDir) - if err != nil { - t.Fatalf("error listing containers: %v", err) - } - if got, want := ids, []string{args.ID}; !reflect.DeepEqual(got, want) { - t.Errorf("container list got %v, want %v", got, want) - } + // expectedPL lists the expected process state of the container. + expectedPL := []*control.Process{ + { + UID: 0, + PID: 1, + PPID: 0, + C: 0, + Cmd: "sleep", + Threads: []kernel.ThreadID{1}, + }, + } + // Create the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() - // Start the container. - if err := c.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Load the container from disk and check the status. + c, err = Load(rootDir, args.ID) + if err != nil { + t.Fatalf("error loading container: %v", err) + } + if got, want := c.Status, Created; got != want { + t.Errorf("container status got %v, want %v", got, want) + } - // Load the container from disk and check the status. - c, err = Load(rootDir, args.ID) - if err != nil { - t.Fatalf("error loading container: %v", err) - } - if got, want := c.Status, Running; got != want { - t.Errorf("container status got %v, want %v", got, want) - } + // List should return the container id. + ids, err := List(rootDir) + if err != nil { + t.Fatalf("error listing containers: %v", err) + } + if got, want := ids, []string{args.ID}; !reflect.DeepEqual(got, want) { + t.Errorf("container list got %v, want %v", got, want) + } - // Verify that "sleep 100" is running. - if err := waitForProcessList(c, expectedPL); err != nil { - t.Error(err) - } + // Start the container. + if err := c.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Wait on the container. - var wg sync.WaitGroup - wg.Add(1) - ch := make(chan struct{}) - go func() { - ch <- struct{}{} - ws, err := c.Wait() + // Load the container from disk and check the status. + c, err = Load(rootDir, args.ID) if err != nil { - t.Fatalf("error waiting on container: %v", err) + t.Fatalf("error loading container: %v", err) } - if got, want := ws.Signal(), syscall.SIGTERM; got != want { - t.Fatalf("got signal %v, want %v", got, want) + if got, want := c.Status, Running; got != want { + t.Errorf("container status got %v, want %v", got, want) } - wg.Done() - }() - // Wait a bit to ensure that we've started waiting on the - // container before we signal. - <-ch - time.Sleep(100 * time.Millisecond) - // Send the container a SIGTERM which will cause it to stop. - if err := c.SignalContainer(syscall.SIGTERM, false); err != nil { - t.Fatalf("error sending signal %v to container: %v", syscall.SIGTERM, err) - } - // Wait for it to die. - wg.Wait() + // Verify that "sleep 100" is running. + if err := waitForProcessList(c, expectedPL); err != nil { + t.Error(err) + } - // Load the container from disk and check the status. - c, err = Load(rootDir, args.ID) - if err != nil { - t.Fatalf("error loading container: %v", err) - } - if got, want := c.Status, Stopped; got != want { - t.Errorf("container status got %v, want %v", got, want) - } + // Wait on the container. + ch := make(chan error) + go func() { + ws, err := c.Wait() + if err != nil { + ch <- err + } + if got, want := ws.Signal(), syscall.SIGTERM; got != want { + ch <- fmt.Errorf("got signal %v, want %v", got, want) + } + ch <- nil + }() - // Destroy the container. - if err := c.Destroy(); err != nil { - t.Fatalf("error destroying container: %v", err) - } + // Wait a bit to ensure that we've started waiting on + // the container before we signal. + time.Sleep(time.Second) - // List should not return the container id. - ids, err = List(rootDir) - if err != nil { - t.Fatalf("error listing containers: %v", err) - } - if len(ids) != 0 { - t.Errorf("expected container list to be empty, but got %v", ids) - } + // Send the container a SIGTERM which will cause it to stop. + if err := c.SignalContainer(syscall.SIGTERM, false); err != nil { + t.Fatalf("error sending signal %v to container: %v", syscall.SIGTERM, err) + } - // Loading the container by id should fail. - if _, err = Load(rootDir, args.ID); err == nil { - t.Errorf("expected loading destroyed container to fail, but it did not") - } + // Wait for it to die. + if err := <-ch; err != nil { + t.Fatalf("error waiting for container: %v", err) + } + + // Load the container from disk and check the status. + c, err = Load(rootDir, args.ID) + if err != nil { + t.Fatalf("error loading container: %v", err) + } + if got, want := c.Status, Stopped; got != want { + t.Errorf("container status got %v, want %v", got, want) + } + + // Destroy the container. + if err := c.Destroy(); err != nil { + t.Fatalf("error destroying container: %v", err) + } + + // List should not return the container id. + ids, err = List(rootDir) + if err != nil { + t.Fatalf("error listing containers: %v", err) + } + if len(ids) != 0 { + t.Errorf("expected container list to be empty, but got %v", ids) + } + + // Loading the container by id should fail. + if _, err = Load(rootDir, args.ID); err == nil { + t.Errorf("expected loading destroyed container to fail, but it did not") + } + }) } } @@ -420,12 +425,14 @@ func TestExePath(t *testing.T) { // Create two directories that will be prepended to PATH. firstPath, err := ioutil.TempDir(testutil.TmpDir(), "first") if err != nil { - t.Fatal(err) + t.Fatalf("error creating temporary directory: %v", err) } + defer os.RemoveAll(firstPath) secondPath, err := ioutil.TempDir(testutil.TmpDir(), "second") if err != nil { - t.Fatal(err) + t.Fatalf("error creating temporary directory: %v", err) } + defer os.RemoveAll(secondPath) // Create two minimal executables in the second path, two of which // will be masked by files in first path. @@ -433,11 +440,11 @@ func TestExePath(t *testing.T) { path := filepath.Join(secondPath, p) f, err := os.OpenFile(path, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0777) if err != nil { - t.Fatal(err) + t.Fatalf("error opening path: %v", err) } defer f.Close() if _, err := io.WriteString(f, "#!/bin/true\n"); err != nil { - t.Fatal(err) + t.Fatalf("error writing contents: %v", err) } } @@ -446,7 +453,7 @@ func TestExePath(t *testing.T) { nonExecutable := filepath.Join(firstPath, "masked1") f2, err := os.OpenFile(nonExecutable, os.O_CREATE|os.O_EXCL, 0666) if err != nil { - t.Fatal(err) + t.Fatalf("error opening file: %v", err) } f2.Close() @@ -454,68 +461,69 @@ func TestExePath(t *testing.T) { // executable in the second. nonRegular := filepath.Join(firstPath, "masked2") if err := os.Mkdir(nonRegular, 0777); err != nil { - t.Fatal(err) - } - - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - for _, test := range []struct { - path string - success bool - }{ - {path: "true", success: true}, - {path: "bin/true", success: true}, - {path: "/bin/true", success: true}, - {path: "thisfiledoesntexit", success: false}, - {path: "bin/thisfiledoesntexit", success: false}, - {path: "/bin/thisfiledoesntexit", success: false}, - - {path: "unmasked", success: true}, - {path: filepath.Join(firstPath, "unmasked"), success: false}, - {path: filepath.Join(secondPath, "unmasked"), success: true}, - - {path: "masked1", success: true}, - {path: filepath.Join(firstPath, "masked1"), success: false}, - {path: filepath.Join(secondPath, "masked1"), success: true}, - - {path: "masked2", success: true}, - {path: filepath.Join(firstPath, "masked2"), success: false}, - {path: filepath.Join(secondPath, "masked2"), success: true}, - } { - spec := testutil.NewSpecWithArgs(test.path) - spec.Process.Env = []string{ - fmt.Sprintf("PATH=%s:%s:%s", firstPath, secondPath, os.Getenv("PATH")), - } - - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("exec: %s, error setting up container: %v", test.path, err) - } - - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - Attached: true, - } - ws, err := Run(conf, args) + t.Fatalf("error making directory: %v", err) + } + + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + for _, test := range []struct { + path string + success bool + }{ + {path: "true", success: true}, + {path: "bin/true", success: true}, + {path: "/bin/true", success: true}, + {path: "thisfiledoesntexit", success: false}, + {path: "bin/thisfiledoesntexit", success: false}, + {path: "/bin/thisfiledoesntexit", success: false}, + + {path: "unmasked", success: true}, + {path: filepath.Join(firstPath, "unmasked"), success: false}, + {path: filepath.Join(secondPath, "unmasked"), success: true}, + + {path: "masked1", success: true}, + {path: filepath.Join(firstPath, "masked1"), success: false}, + {path: filepath.Join(secondPath, "masked1"), success: true}, + + {path: "masked2", success: true}, + {path: filepath.Join(firstPath, "masked2"), success: false}, + {path: filepath.Join(secondPath, "masked2"), success: true}, + } { + t.Run(fmt.Sprintf("path=%s,success=%t", test.path, test.success), func(t *testing.T) { + spec := testutil.NewSpecWithArgs(test.path) + spec.Process.Env = []string{ + fmt.Sprintf("PATH=%s:%s:%s", firstPath, secondPath, os.Getenv("PATH")), + } - os.RemoveAll(rootDir) - os.RemoveAll(bundleDir) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("exec: error setting up container: %v", err) + } + defer cleanup() - if test.success { - if err != nil { - t.Errorf("exec: %s, error running container: %v", test.path, err) - } - if ws.ExitStatus() != 0 { - t.Errorf("exec: %s, got exit status %v want %v", test.path, ws.ExitStatus(), 0) - } - } else { - if err == nil { - t.Errorf("exec: %s, got: no error, want: error", test.path) - } + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + Attached: true, + } + ws, err := Run(conf, args) + + if test.success { + if err != nil { + t.Errorf("exec: error running container: %v", err) + } + if ws.ExitStatus() != 0 { + t.Errorf("exec: got exit status %v want %v", ws.ExitStatus(), 0) + } + } else { + if err == nil { + t.Errorf("exec: got: no error, want: error") + } + } + }) } - } + }) } } @@ -534,15 +542,14 @@ func doAppExitStatus(t *testing.T, vfs2 bool) { succSpec := testutil.NewSpecWithArgs("true") conf := testutil.TestConfig(t) conf.VFS2 = vfs2 - rootDir, bundleDir, err := testutil.SetupContainer(succSpec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(succSpec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: succSpec, BundleDir: bundleDir, Attached: true, @@ -559,15 +566,14 @@ func doAppExitStatus(t *testing.T, vfs2 bool) { wantStatus := 123 errSpec := testutil.NewSpecWithArgs("bash", "-c", fmt.Sprintf("exit %d", wantStatus)) - rootDir2, bundleDir2, err := testutil.SetupContainer(errSpec, conf) + _, bundleDir2, cleanup2, err := testutil.SetupContainer(errSpec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir2) - defer os.RemoveAll(bundleDir2) + defer cleanup2() args2 := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: errSpec, BundleDir: bundleDir2, Attached: true, @@ -583,166 +589,163 @@ func doAppExitStatus(t *testing.T, vfs2 bool) { // TestExec verifies that a container can exec a new program. func TestExec(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + const uid = 343 + spec := testutil.NewSpecWithArgs("sleep", "100") - const uid = 343 - spec := testutil.NewSpecWithArgs("sleep", "100") + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + // Create and start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont.Destroy() + if err := cont.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Create and start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // expectedPL lists the expected process state of the container. + expectedPL := []*control.Process{ + { + UID: 0, + PID: 1, + PPID: 0, + C: 0, + Cmd: "sleep", + Threads: []kernel.ThreadID{1}, + }, + { + UID: uid, + PID: 2, + PPID: 0, + C: 0, + Cmd: "sleep", + Threads: []kernel.ThreadID{2}, + }, + } - // expectedPL lists the expected process state of the container. - expectedPL := []*control.Process{ - { - UID: 0, - PID: 1, - PPID: 0, - C: 0, - Cmd: "sleep", - Threads: []kernel.ThreadID{1}, - }, - { - UID: uid, - PID: 2, - PPID: 0, - C: 0, - Cmd: "sleep", - Threads: []kernel.ThreadID{2}, - }, - } + // Verify that "sleep 100" is running. + if err := waitForProcessList(cont, expectedPL[:1]); err != nil { + t.Error(err) + } - // Verify that "sleep 100" is running. - if err := waitForProcessList(cont, expectedPL[:1]); err != nil { - t.Error(err) - } + execArgs := &control.ExecArgs{ + Filename: "/bin/sleep", + Argv: []string{"/bin/sleep", "5"}, + WorkingDirectory: "/", + KUID: uid, + } - execArgs := &control.ExecArgs{ - Filename: "/bin/sleep", - Argv: []string{"/bin/sleep", "5"}, - WorkingDirectory: "/", - KUID: uid, - } + // Verify that "sleep 100" and "sleep 5" are running + // after exec. First, start running exec (whick + // blocks). + ch := make(chan error) + go func() { + exitStatus, err := cont.executeSync(execArgs) + if err != nil { + ch <- err + } else if exitStatus != 0 { + ch <- fmt.Errorf("failed with exit status: %v", exitStatus) + } else { + ch <- nil + } + }() - // Verify that "sleep 100" and "sleep 5" are running after exec. - // First, start running exec (whick blocks). - status := make(chan error, 1) - go func() { - exitStatus, err := cont.executeSync(execArgs) - if err != nil { - log.Debugf("error executing: %v", err) - status <- err - } else if exitStatus != 0 { - log.Debugf("bad status: %d", exitStatus) - status <- fmt.Errorf("failed with exit status: %v", exitStatus) - } else { - status <- nil + if err := waitForProcessList(cont, expectedPL); err != nil { + t.Fatalf("error waiting for processes: %v", err) } - }() - if err := waitForProcessList(cont, expectedPL); err != nil { - t.Fatal(err) - } - - // Ensure that exec finished without error. - select { - case <-time.After(10 * time.Second): - t.Fatalf("container timed out waiting for exec to finish.") - case st := <-status: - if st != nil { - t.Errorf("container failed to exec %v: %v", args, err) + // Ensure that exec finished without error. + select { + case <-time.After(10 * time.Second): + t.Fatalf("container timed out waiting for exec to finish.") + case err := <-ch: + if err != nil { + t.Errorf("container failed to exec %v: %v", args, err) + } } - } + }) } } // TestKillPid verifies that we can signal individual exec'd processes. func TestKillPid(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - - app, err := testutil.FindFile("runsc/container/test_app/test_app") - if err != nil { - t.Fatal("error finding test_app:", err) - } + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + app, err := testutil.FindFile("test/cmd/test_app/test_app") + if err != nil { + t.Fatal("error finding test_app:", err) + } - const nProcs = 4 - spec := testutil.NewSpecWithArgs(app, "task-tree", "--depth", strconv.Itoa(nProcs-1), "--width=1", "--pause=true") - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + const nProcs = 4 + spec := testutil.NewSpecWithArgs(app, "task-tree", "--depth", strconv.Itoa(nProcs-1), "--width=1", "--pause=true") + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create and start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create and start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont.Destroy() + if err := cont.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Verify that all processes are running. - if err := waitForProcessCount(cont, nProcs); err != nil { - t.Fatalf("timed out waiting for processes to start: %v", err) - } + // Verify that all processes are running. + if err := waitForProcessCount(cont, nProcs); err != nil { + t.Fatalf("timed out waiting for processes to start: %v", err) + } - // Kill the child process with the largest PID. - procs, err := cont.Processes() - if err != nil { - t.Fatalf("failed to get process list: %v", err) - } - var pid int32 - for _, p := range procs { - if pid < int32(p.PID) { - pid = int32(p.PID) + // Kill the child process with the largest PID. + procs, err := cont.Processes() + if err != nil { + t.Fatalf("failed to get process list: %v", err) + } + var pid int32 + for _, p := range procs { + if pid < int32(p.PID) { + pid = int32(p.PID) + } + } + if err := cont.SignalProcess(syscall.SIGKILL, pid); err != nil { + t.Fatalf("failed to signal process %d: %v", pid, err) } - } - if err := cont.SignalProcess(syscall.SIGKILL, pid); err != nil { - t.Fatalf("failed to signal process %d: %v", pid, err) - } - // Verify that one process is gone. - if err := waitForProcessCount(cont, nProcs-1); err != nil { - t.Fatal(err) - } + // Verify that one process is gone. + if err := waitForProcessCount(cont, nProcs-1); err != nil { + t.Fatalf("error waiting for processes: %v", err) + } - procs, err = cont.Processes() - if err != nil { - t.Fatalf("failed to get process list: %v", err) - } - for _, p := range procs { - if pid == int32(p.PID) { - t.Fatalf("pid %d is still alive, which should be killed", pid) + procs, err = cont.Processes() + if err != nil { + t.Fatalf("failed to get process list: %v", err) } - } + for _, p := range procs { + if pid == int32(p.PID) { + t.Fatalf("pid %d is still alive, which should be killed", pid) + } + } + }) } } @@ -753,160 +756,160 @@ func TestKillPid(t *testing.T) { // be the next consecutive number after the last number from the checkpointed container. func TestCheckpointRestore(t *testing.T) { // Skip overlay because test requires writing to host file. - for _, conf := range configs(t, noOverlay...) { - t.Logf("Running test with conf: %+v", conf) - - dir, err := ioutil.TempDir(testutil.TmpDir(), "checkpoint-test") - if err != nil { - t.Fatalf("ioutil.TempDir failed: %v", err) - } - if err := os.Chmod(dir, 0777); err != nil { - t.Fatalf("error chmoding file: %q, %v", dir, err) - } + for name, conf := range configs(t, noOverlay...) { + t.Run(name, func(t *testing.T) { + dir, err := ioutil.TempDir(testutil.TmpDir(), "checkpoint-test") + if err != nil { + t.Fatalf("ioutil.TempDir failed: %v", err) + } + defer os.RemoveAll(dir) + if err := os.Chmod(dir, 0777); err != nil { + t.Fatalf("error chmoding file: %q, %v", dir, err) + } - outputPath := filepath.Join(dir, "output") - outputFile, err := createWriteableOutputFile(outputPath) - if err != nil { - t.Fatalf("error creating output file: %v", err) - } - defer outputFile.Close() + outputPath := filepath.Join(dir, "output") + outputFile, err := createWriteableOutputFile(outputPath) + if err != nil { + t.Fatalf("error creating output file: %v", err) + } + defer outputFile.Close() - script := fmt.Sprintf("for ((i=0; ;i++)); do echo $i >> %q; sleep 1; done", outputPath) - spec := testutil.NewSpecWithArgs("bash", "-c", script) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + script := fmt.Sprintf("for ((i=0; ;i++)); do echo $i >> %q; sleep 1; done", outputPath) + spec := testutil.NewSpecWithArgs("bash", "-c", script) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create and start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create and start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont.Destroy() + if err := cont.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Set the image path, which is where the checkpoint image will be saved. - imagePath := filepath.Join(dir, "test-image-file") + // Set the image path, which is where the checkpoint image will be saved. + imagePath := filepath.Join(dir, "test-image-file") - // Create the image file and open for writing. - file, err := os.OpenFile(imagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) - if err != nil { - t.Fatalf("error opening new file at imagePath: %v", err) - } - defer file.Close() + // Create the image file and open for writing. + file, err := os.OpenFile(imagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) + if err != nil { + t.Fatalf("error opening new file at imagePath: %v", err) + } + defer file.Close() - // Wait until application has ran. - if err := waitForFileNotEmpty(outputFile); err != nil { - t.Fatalf("Failed to wait for output file: %v", err) - } + // Wait until application has ran. + if err := waitForFileNotEmpty(outputFile); err != nil { + t.Fatalf("Failed to wait for output file: %v", err) + } - // Checkpoint running container; save state into new file. - if err := cont.Checkpoint(file); err != nil { - t.Fatalf("error checkpointing container to empty file: %v", err) - } - defer os.RemoveAll(imagePath) + // Checkpoint running container; save state into new file. + if err := cont.Checkpoint(file); err != nil { + t.Fatalf("error checkpointing container to empty file: %v", err) + } + defer os.RemoveAll(imagePath) - lastNum, err := readOutputNum(outputPath, -1) - if err != nil { - t.Fatalf("error with outputFile: %v", err) - } + lastNum, err := readOutputNum(outputPath, -1) + if err != nil { + t.Fatalf("error with outputFile: %v", err) + } - // Delete and recreate file before restoring. - if err := os.Remove(outputPath); err != nil { - t.Fatalf("error removing file") - } - outputFile2, err := createWriteableOutputFile(outputPath) - if err != nil { - t.Fatalf("error creating output file: %v", err) - } - defer outputFile2.Close() + // Delete and recreate file before restoring. + if err := os.Remove(outputPath); err != nil { + t.Fatalf("error removing file") + } + outputFile2, err := createWriteableOutputFile(outputPath) + if err != nil { + t.Fatalf("error creating output file: %v", err) + } + defer outputFile2.Close() - // Restore into a new container. - args2 := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont2, err := New(conf, args2) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont2.Destroy() + // Restore into a new container. + args2 := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont2, err := New(conf, args2) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont2.Destroy() - if err := cont2.Restore(spec, conf, imagePath); err != nil { - t.Fatalf("error restoring container: %v", err) - } + if err := cont2.Restore(spec, conf, imagePath); err != nil { + t.Fatalf("error restoring container: %v", err) + } - // Wait until application has ran. - if err := waitForFileNotEmpty(outputFile2); err != nil { - t.Fatalf("Failed to wait for output file: %v", err) - } + // Wait until application has ran. + if err := waitForFileNotEmpty(outputFile2); err != nil { + t.Fatalf("Failed to wait for output file: %v", err) + } - firstNum, err := readOutputNum(outputPath, 0) - if err != nil { - t.Fatalf("error with outputFile: %v", err) - } + firstNum, err := readOutputNum(outputPath, 0) + if err != nil { + t.Fatalf("error with outputFile: %v", err) + } - // Check that lastNum is one less than firstNum and that the container picks - // up from where it left off. - if lastNum+1 != firstNum { - t.Errorf("error numbers not in order, previous: %d, next: %d", lastNum, firstNum) - } - cont2.Destroy() + // Check that lastNum is one less than firstNum and that the container picks + // up from where it left off. + if lastNum+1 != firstNum { + t.Errorf("error numbers not in order, previous: %d, next: %d", lastNum, firstNum) + } + cont2.Destroy() - // Restore into another container! - // Delete and recreate file before restoring. - if err := os.Remove(outputPath); err != nil { - t.Fatalf("error removing file") - } - outputFile3, err := createWriteableOutputFile(outputPath) - if err != nil { - t.Fatalf("error creating output file: %v", err) - } - defer outputFile3.Close() + // Restore into another container! + // Delete and recreate file before restoring. + if err := os.Remove(outputPath); err != nil { + t.Fatalf("error removing file") + } + outputFile3, err := createWriteableOutputFile(outputPath) + if err != nil { + t.Fatalf("error creating output file: %v", err) + } + defer outputFile3.Close() - // Restore into a new container. - args3 := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont3, err := New(conf, args3) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont3.Destroy() + // Restore into a new container. + args3 := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont3, err := New(conf, args3) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont3.Destroy() - if err := cont3.Restore(spec, conf, imagePath); err != nil { - t.Fatalf("error restoring container: %v", err) - } + if err := cont3.Restore(spec, conf, imagePath); err != nil { + t.Fatalf("error restoring container: %v", err) + } - // Wait until application has ran. - if err := waitForFileNotEmpty(outputFile3); err != nil { - t.Fatalf("Failed to wait for output file: %v", err) - } + // Wait until application has ran. + if err := waitForFileNotEmpty(outputFile3); err != nil { + t.Fatalf("Failed to wait for output file: %v", err) + } - firstNum2, err := readOutputNum(outputPath, 0) - if err != nil { - t.Fatalf("error with outputFile: %v", err) - } + firstNum2, err := readOutputNum(outputPath, 0) + if err != nil { + t.Fatalf("error with outputFile: %v", err) + } - // Check that lastNum is one less than firstNum and that the container picks - // up from where it left off. - if lastNum+1 != firstNum2 { - t.Errorf("error numbers not in order, previous: %d, next: %d", lastNum, firstNum2) - } - cont3.Destroy() + // Check that lastNum is one less than firstNum and that the container picks + // up from where it left off. + if lastNum+1 != firstNum2 { + t.Errorf("error numbers not in order, previous: %d, next: %d", lastNum, firstNum2) + } + cont3.Destroy() + }) } } @@ -914,135 +917,134 @@ func TestCheckpointRestore(t *testing.T) { // with filesystem Unix Domain Socket use. func TestUnixDomainSockets(t *testing.T) { // Skip overlay because test requires writing to host file. - for _, conf := range configs(t, noOverlay...) { - t.Logf("Running test with conf: %+v", conf) - - // UDS path is limited to 108 chars for compatibility with older systems. - // Use '/tmp' (instead of testutil.TmpDir) to ensure the size limit is - // not exceeded. Assumes '/tmp' exists in the system. - dir, err := ioutil.TempDir("/tmp", "uds-test") - if err != nil { - t.Fatalf("ioutil.TempDir failed: %v", err) - } - defer os.RemoveAll(dir) + for name, conf := range configs(t, noOverlay...) { + t.Run(name, func(t *testing.T) { + // UDS path is limited to 108 chars for compatibility with older systems. + // Use '/tmp' (instead of testutil.TmpDir) to ensure the size limit is + // not exceeded. Assumes '/tmp' exists in the system. + dir, err := ioutil.TempDir("/tmp", "uds-test") + if err != nil { + t.Fatalf("ioutil.TempDir failed: %v", err) + } + defer os.RemoveAll(dir) - outputPath := filepath.Join(dir, "uds_output") - outputFile, err := os.OpenFile(outputPath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666) - if err != nil { - t.Fatalf("error creating output file: %v", err) - } - defer outputFile.Close() + outputPath := filepath.Join(dir, "uds_output") + outputFile, err := os.OpenFile(outputPath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666) + if err != nil { + t.Fatalf("error creating output file: %v", err) + } + defer outputFile.Close() - app, err := testutil.FindFile("runsc/container/test_app/test_app") - if err != nil { - t.Fatal("error finding test_app:", err) - } + app, err := testutil.FindFile("test/cmd/test_app/test_app") + if err != nil { + t.Fatal("error finding test_app:", err) + } - socketPath := filepath.Join(dir, "uds_socket") - defer os.Remove(socketPath) + socketPath := filepath.Join(dir, "uds_socket") + defer os.Remove(socketPath) - spec := testutil.NewSpecWithArgs(app, "uds", "--file", outputPath, "--socket", socketPath) - spec.Process.User = specs.User{ - UID: uint32(os.Getuid()), - GID: uint32(os.Getgid()), - } - spec.Mounts = []specs.Mount{{ - Type: "bind", - Destination: dir, - Source: dir, - }} + spec := testutil.NewSpecWithArgs(app, "uds", "--file", outputPath, "--socket", socketPath) + spec.Process.User = specs.User{ + UID: uint32(os.Getuid()), + GID: uint32(os.Getgid()), + } + spec.Mounts = []specs.Mount{{ + Type: "bind", + Destination: dir, + Source: dir, + }} - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create and start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create and start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont.Destroy() + if err := cont.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Set the image path, the location where the checkpoint image will be saved. - imagePath := filepath.Join(dir, "test-image-file") + // Set the image path, the location where the checkpoint image will be saved. + imagePath := filepath.Join(dir, "test-image-file") - // Create the image file and open for writing. - file, err := os.OpenFile(imagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) - if err != nil { - t.Fatalf("error opening new file at imagePath: %v", err) - } - defer file.Close() - defer os.RemoveAll(imagePath) + // Create the image file and open for writing. + file, err := os.OpenFile(imagePath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0644) + if err != nil { + t.Fatalf("error opening new file at imagePath: %v", err) + } + defer file.Close() + defer os.RemoveAll(imagePath) - // Wait until application has ran. - if err := waitForFileNotEmpty(outputFile); err != nil { - t.Fatalf("Failed to wait for output file: %v", err) - } + // Wait until application has ran. + if err := waitForFileNotEmpty(outputFile); err != nil { + t.Fatalf("Failed to wait for output file: %v", err) + } - // Checkpoint running container; save state into new file. - if err := cont.Checkpoint(file); err != nil { - t.Fatalf("error checkpointing container to empty file: %v", err) - } + // Checkpoint running container; save state into new file. + if err := cont.Checkpoint(file); err != nil { + t.Fatalf("error checkpointing container to empty file: %v", err) + } - // Read last number outputted before checkpoint. - lastNum, err := readOutputNum(outputPath, -1) - if err != nil { - t.Fatalf("error with outputFile: %v", err) - } + // Read last number outputted before checkpoint. + lastNum, err := readOutputNum(outputPath, -1) + if err != nil { + t.Fatalf("error with outputFile: %v", err) + } - // Delete and recreate file before restoring. - if err := os.Remove(outputPath); err != nil { - t.Fatalf("error removing file") - } - outputFile2, err := os.OpenFile(outputPath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666) - if err != nil { - t.Fatalf("error creating output file: %v", err) - } - defer outputFile2.Close() + // Delete and recreate file before restoring. + if err := os.Remove(outputPath); err != nil { + t.Fatalf("error removing file") + } + outputFile2, err := os.OpenFile(outputPath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666) + if err != nil { + t.Fatalf("error creating output file: %v", err) + } + defer outputFile2.Close() - // Restore into a new container. - argsRestore := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - contRestore, err := New(conf, argsRestore) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer contRestore.Destroy() + // Restore into a new container. + argsRestore := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + contRestore, err := New(conf, argsRestore) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer contRestore.Destroy() - if err := contRestore.Restore(spec, conf, imagePath); err != nil { - t.Fatalf("error restoring container: %v", err) - } + if err := contRestore.Restore(spec, conf, imagePath); err != nil { + t.Fatalf("error restoring container: %v", err) + } - // Wait until application has ran. - if err := waitForFileNotEmpty(outputFile2); err != nil { - t.Fatalf("Failed to wait for output file: %v", err) - } + // Wait until application has ran. + if err := waitForFileNotEmpty(outputFile2); err != nil { + t.Fatalf("Failed to wait for output file: %v", err) + } - // Read first number outputted after restore. - firstNum, err := readOutputNum(outputPath, 0) - if err != nil { - t.Fatalf("error with outputFile: %v", err) - } + // Read first number outputted after restore. + firstNum, err := readOutputNum(outputPath, 0) + if err != nil { + t.Fatalf("error with outputFile: %v", err) + } - // Check that lastNum is one less than firstNum. - if lastNum+1 != firstNum { - t.Errorf("error numbers not consecutive, previous: %d, next: %d", lastNum, firstNum) - } - contRestore.Destroy() + // Check that lastNum is one less than firstNum. + if lastNum+1 != firstNum { + t.Errorf("error numbers not consecutive, previous: %d, next: %d", lastNum, firstNum) + } + contRestore.Destroy() + }) } } @@ -1052,10 +1054,8 @@ func TestUnixDomainSockets(t *testing.T) { // recreated. Then it resumes the container, verify that the file gets created // again. func TestPauseResume(t *testing.T) { - for _, conf := range configs(t, noOverlay...) { - t.Run(fmt.Sprintf("conf: %+v", conf), func(t *testing.T) { - t.Logf("Running test with conf: %+v", conf) - + for name, conf := range configs(t, noOverlay...) { + t.Run(name, func(t *testing.T) { tmpDir, err := ioutil.TempDir(testutil.TmpDir(), "lock") if err != nil { t.Fatalf("error creating temp dir: %v", err) @@ -1066,16 +1066,15 @@ func TestPauseResume(t *testing.T) { script := fmt.Sprintf("while [[ true ]]; do touch %q; sleep 0.1; done", running) spec := testutil.NewSpecWithArgs("/bin/bash", "-c", script) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1134,16 +1133,15 @@ func TestPauseResume(t *testing.T) { func TestPauseResumeStatus(t *testing.T) { spec := testutil.NewSpecWithArgs("sleep", "20") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1199,359 +1197,356 @@ func TestCapabilities(t *testing.T) { uid := auth.KUID(os.Getuid() + 1) gid := auth.KGID(os.Getgid() + 1) - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - spec := testutil.NewSpecWithArgs("sleep", "100") - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + spec := testutil.NewSpecWithArgs("sleep", "100") + rootDir, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create and start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create and start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer cont.Destroy() + if err := cont.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // expectedPL lists the expected process state of the container. - expectedPL := []*control.Process{ - { - UID: 0, - PID: 1, - PPID: 0, - C: 0, - Cmd: "sleep", - Threads: []kernel.ThreadID{1}, - }, - { - UID: uid, - PID: 2, - PPID: 0, - C: 0, - Cmd: "exe", - Threads: []kernel.ThreadID{2}, - }, - } - if err := waitForProcessList(cont, expectedPL[:1]); err != nil { - t.Fatalf("Failed to wait for sleep to start, err: %v", err) - } + // expectedPL lists the expected process state of the container. + expectedPL := []*control.Process{ + { + UID: 0, + PID: 1, + PPID: 0, + C: 0, + Cmd: "sleep", + Threads: []kernel.ThreadID{1}, + }, + { + UID: uid, + PID: 2, + PPID: 0, + C: 0, + Cmd: "exe", + Threads: []kernel.ThreadID{2}, + }, + } + if err := waitForProcessList(cont, expectedPL[:1]); err != nil { + t.Fatalf("Failed to wait for sleep to start, err: %v", err) + } - // Create an executable that can't be run with the specified UID:GID. - // This shouldn't be callable within the container until we add the - // CAP_DAC_OVERRIDE capability to skip the access check. - exePath := filepath.Join(rootDir, "exe") - if err := ioutil.WriteFile(exePath, []byte("#!/bin/sh\necho hello"), 0770); err != nil { - t.Fatalf("couldn't create executable: %v", err) - } - defer os.Remove(exePath) - - // Need to traverse the intermediate directory. - os.Chmod(rootDir, 0755) - - execArgs := &control.ExecArgs{ - Filename: exePath, - Argv: []string{exePath}, - WorkingDirectory: "/", - KUID: uid, - KGID: gid, - Capabilities: &auth.TaskCapabilities{}, - } + // Create an executable that can't be run with the specified UID:GID. + // This shouldn't be callable within the container until we add the + // CAP_DAC_OVERRIDE capability to skip the access check. + exePath := filepath.Join(rootDir, "exe") + if err := ioutil.WriteFile(exePath, []byte("#!/bin/sh\necho hello"), 0770); err != nil { + t.Fatalf("couldn't create executable: %v", err) + } + defer os.Remove(exePath) + + // Need to traverse the intermediate directory. + os.Chmod(rootDir, 0755) + + execArgs := &control.ExecArgs{ + Filename: exePath, + Argv: []string{exePath}, + WorkingDirectory: "/", + KUID: uid, + KGID: gid, + Capabilities: &auth.TaskCapabilities{}, + } - // "exe" should fail because we don't have the necessary permissions. - if _, err := cont.executeSync(execArgs); err == nil { - t.Fatalf("container executed without error, but an error was expected") - } + // "exe" should fail because we don't have the necessary permissions. + if _, err := cont.executeSync(execArgs); err == nil { + t.Fatalf("container executed without error, but an error was expected") + } - // Now we run with the capability enabled and should succeed. - execArgs.Capabilities = &auth.TaskCapabilities{ - EffectiveCaps: auth.CapabilitySetOf(linux.CAP_DAC_OVERRIDE), - } - // "exe" should not fail this time. - if _, err := cont.executeSync(execArgs); err != nil { - t.Fatalf("container failed to exec %v: %v", args, err) - } + // Now we run with the capability enabled and should succeed. + execArgs.Capabilities = &auth.TaskCapabilities{ + EffectiveCaps: auth.CapabilitySetOf(linux.CAP_DAC_OVERRIDE), + } + // "exe" should not fail this time. + if _, err := cont.executeSync(execArgs); err != nil { + t.Fatalf("container failed to exec %v: %v", args, err) + } + }) } } // TestRunNonRoot checks that sandbox can be configured when running as // non-privileged user. func TestRunNonRoot(t *testing.T) { - for _, conf := range configs(t, noOverlay...) { - t.Logf("Running test with conf: %+v", conf) - - spec := testutil.NewSpecWithArgs("/bin/true") - - // Set a random user/group with no access to "blocked" dir. - spec.Process.User.UID = 343 - spec.Process.User.GID = 2401 - spec.Process.Capabilities = nil + for name, conf := range configs(t, noOverlay...) { + t.Run(name, func(t *testing.T) { + spec := testutil.NewSpecWithArgs("/bin/true") + + // Set a random user/group with no access to "blocked" dir. + spec.Process.User.UID = 343 + spec.Process.User.GID = 2401 + spec.Process.Capabilities = nil + + // User running inside container can't list '$TMP/blocked' and would fail to + // mount it. + dir, err := ioutil.TempDir(testutil.TmpDir(), "blocked") + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } + if err := os.Chmod(dir, 0700); err != nil { + t.Fatalf("os.MkDir(%q) failed: %v", dir, err) + } + dir = path.Join(dir, "test") + if err := os.Mkdir(dir, 0755); err != nil { + t.Fatalf("os.MkDir(%q) failed: %v", dir, err) + } - // User running inside container can't list '$TMP/blocked' and would fail to - // mount it. - dir, err := ioutil.TempDir(testutil.TmpDir(), "blocked") - if err != nil { - t.Fatalf("ioutil.TempDir() failed: %v", err) - } - if err := os.Chmod(dir, 0700); err != nil { - t.Fatalf("os.MkDir(%q) failed: %v", dir, err) - } - dir = path.Join(dir, "test") - if err := os.Mkdir(dir, 0755); err != nil { - t.Fatalf("os.MkDir(%q) failed: %v", dir, err) - } + src, err := ioutil.TempDir(testutil.TmpDir(), "src") + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } - src, err := ioutil.TempDir(testutil.TmpDir(), "src") - if err != nil { - t.Fatalf("ioutil.TempDir() failed: %v", err) - } + spec.Mounts = append(spec.Mounts, specs.Mount{ + Destination: dir, + Source: src, + Type: "bind", + }) - spec.Mounts = append(spec.Mounts, specs.Mount{ - Destination: dir, - Source: src, - Type: "bind", + if err := run(spec, conf); err != nil { + t.Fatalf("error running sandbox: %v", err) + } }) - - if err := run(spec, conf); err != nil { - t.Fatalf("error running sandbox: %v", err) - } } } // TestMountNewDir checks that runsc will create destination directory if it // doesn't exit. func TestMountNewDir(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + root, err := ioutil.TempDir(testutil.TmpDir(), "root") + if err != nil { + t.Fatal("ioutil.TempDir() failed:", err) + } - root, err := ioutil.TempDir(testutil.TmpDir(), "root") - if err != nil { - t.Fatal("ioutil.TempDir() failed:", err) - } + srcDir := path.Join(root, "src", "dir", "anotherdir") + if err := os.MkdirAll(srcDir, 0755); err != nil { + t.Fatalf("os.MkDir(%q) failed: %v", srcDir, err) + } - srcDir := path.Join(root, "src", "dir", "anotherdir") - if err := os.MkdirAll(srcDir, 0755); err != nil { - t.Fatalf("os.MkDir(%q) failed: %v", srcDir, err) - } + mountDir := path.Join(root, "dir", "anotherdir") - mountDir := path.Join(root, "dir", "anotherdir") + spec := testutil.NewSpecWithArgs("/bin/ls", mountDir) + spec.Mounts = append(spec.Mounts, specs.Mount{ + Destination: mountDir, + Source: srcDir, + Type: "bind", + }) - spec := testutil.NewSpecWithArgs("/bin/ls", mountDir) - spec.Mounts = append(spec.Mounts, specs.Mount{ - Destination: mountDir, - Source: srcDir, - Type: "bind", + if err := run(spec, conf); err != nil { + t.Fatalf("error running sandbox: %v", err) + } }) - - if err := run(spec, conf); err != nil { - t.Fatalf("error running sandbox: %v", err) - } } } func TestReadonlyRoot(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - - spec := testutil.NewSpecWithArgs("/bin/touch", "/foo") - spec.Root.Readonly = true - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + spec := testutil.NewSpecWithArgs("/bin/touch", "/foo") + spec.Root.Readonly = true + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create, start and wait for the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() - if err := c.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create, start and wait for the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() + if err := c.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - ws, err := c.Wait() - if err != nil { - t.Fatalf("error waiting on container: %v", err) - } - if !ws.Exited() || syscall.Errno(ws.ExitStatus()) != syscall.EPERM { - t.Fatalf("container failed, waitStatus: %v", ws) - } + ws, err := c.Wait() + if err != nil { + t.Fatalf("error waiting on container: %v", err) + } + if !ws.Exited() || syscall.Errno(ws.ExitStatus()) != syscall.EPERM { + t.Fatalf("container failed, waitStatus: %v", ws) + } + }) } } func TestUIDMap(t *testing.T) { - for _, conf := range configs(t, noOverlay...) { - t.Logf("Running test with conf: %+v", conf) - testDir, err := ioutil.TempDir(testutil.TmpDir(), "test-mount") - if err != nil { - t.Fatal(err) - } - defer os.RemoveAll(testDir) - testFile := path.Join(testDir, "testfile") - - spec := testutil.NewSpecWithArgs("touch", "/tmp/testfile") - uid := os.Getuid() - gid := os.Getgid() - spec.Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{ - {Type: specs.UserNamespace}, - {Type: specs.PIDNamespace}, - {Type: specs.MountNamespace}, - }, - UIDMappings: []specs.LinuxIDMapping{ - { - ContainerID: 0, - HostID: uint32(uid), - Size: 1, + for name, conf := range configs(t, noOverlay...) { + t.Run(name, func(t *testing.T) { + testDir, err := ioutil.TempDir(testutil.TmpDir(), "test-mount") + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } + defer os.RemoveAll(testDir) + testFile := path.Join(testDir, "testfile") + + spec := testutil.NewSpecWithArgs("touch", "/tmp/testfile") + uid := os.Getuid() + gid := os.Getgid() + spec.Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{ + {Type: specs.UserNamespace}, + {Type: specs.PIDNamespace}, + {Type: specs.MountNamespace}, }, - }, - GIDMappings: []specs.LinuxIDMapping{ - { - ContainerID: 0, - HostID: uint32(gid), - Size: 1, + UIDMappings: []specs.LinuxIDMapping{ + { + ContainerID: 0, + HostID: uint32(uid), + Size: 1, + }, }, - }, - } + GIDMappings: []specs.LinuxIDMapping{ + { + ContainerID: 0, + HostID: uint32(gid), + Size: 1, + }, + }, + } - spec.Mounts = append(spec.Mounts, specs.Mount{ - Destination: "/tmp", - Source: testDir, - Type: "bind", - }) + spec.Mounts = append(spec.Mounts, specs.Mount{ + Destination: "/tmp", + Source: testDir, + Type: "bind", + }) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create, start and wait for the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() - if err := c.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create, start and wait for the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() + if err := c.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - ws, err := c.Wait() - if err != nil { - t.Fatalf("error waiting on container: %v", err) - } - if !ws.Exited() || ws.ExitStatus() != 0 { - t.Fatalf("container failed, waitStatus: %v", ws) - } - st := syscall.Stat_t{} - if err := syscall.Stat(testFile, &st); err != nil { - t.Fatalf("error stat /testfile: %v", err) - } + ws, err := c.Wait() + if err != nil { + t.Fatalf("error waiting on container: %v", err) + } + if !ws.Exited() || ws.ExitStatus() != 0 { + t.Fatalf("container failed, waitStatus: %v", ws) + } + st := syscall.Stat_t{} + if err := syscall.Stat(testFile, &st); err != nil { + t.Fatalf("error stat /testfile: %v", err) + } - if st.Uid != uint32(uid) || st.Gid != uint32(gid) { - t.Fatalf("UID: %d (%d) GID: %d (%d)", st.Uid, uid, st.Gid, gid) - } + if st.Uid != uint32(uid) || st.Gid != uint32(gid) { + t.Fatalf("UID: %d (%d) GID: %d (%d)", st.Uid, uid, st.Gid, gid) + } + }) } } func TestReadonlyMount(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - - dir, err := ioutil.TempDir(testutil.TmpDir(), "ro-mount") - spec := testutil.NewSpecWithArgs("/bin/touch", path.Join(dir, "file")) - if err != nil { - t.Fatalf("ioutil.TempDir() failed: %v", err) - } - spec.Mounts = append(spec.Mounts, specs.Mount{ - Destination: dir, - Source: dir, - Type: "bind", - Options: []string{"ro"}, - }) - spec.Root.Readonly = false - - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + dir, err := ioutil.TempDir(testutil.TmpDir(), "ro-mount") + spec := testutil.NewSpecWithArgs("/bin/touch", path.Join(dir, "file")) + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } + spec.Mounts = append(spec.Mounts, specs.Mount{ + Destination: dir, + Source: dir, + Type: "bind", + Options: []string{"ro"}, + }) + spec.Root.Readonly = false + + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create, start and wait for the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() - if err := c.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create, start and wait for the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() + if err := c.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - ws, err := c.Wait() - if err != nil { - t.Fatalf("error waiting on container: %v", err) - } - if !ws.Exited() || syscall.Errno(ws.ExitStatus()) != syscall.EPERM { - t.Fatalf("container failed, waitStatus: %v", ws) - } + ws, err := c.Wait() + if err != nil { + t.Fatalf("error waiting on container: %v", err) + } + if !ws.Exited() || syscall.Errno(ws.ExitStatus()) != syscall.EPERM { + t.Fatalf("container failed, waitStatus: %v", ws) + } + }) } } // TestAbbreviatedIDs checks that runsc supports using abbreviated container // IDs in place of full IDs. func TestAbbreviatedIDs(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir cids := []string{ - "foo-" + testutil.UniqueContainerID(), - "bar-" + testutil.UniqueContainerID(), - "baz-" + testutil.UniqueContainerID(), + "foo-" + testutil.RandomContainerID(), + "bar-" + testutil.RandomContainerID(), + "baz-" + testutil.RandomContainerID(), } for _, cid := range cids { spec := testutil.NewSpecWithArgs("sleep", "100") - bundleDir, err := testutil.SetupBundleDir(spec) + bundleDir, cleanup, err := testutil.SetupBundleDir(spec) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ @@ -1596,16 +1591,15 @@ func TestAbbreviatedIDs(t *testing.T) { func TestGoferExits(t *testing.T) { spec := testutil.NewSpecWithArgs("/bin/sleep", "10000") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1634,7 +1628,7 @@ func TestGoferExits(t *testing.T) { } func TestRootNotMount(t *testing.T) { - appSym, err := testutil.FindFile("runsc/container/test_app/test_app") + appSym, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -1671,7 +1665,7 @@ func TestRootNotMount(t *testing.T) { } func TestUserLog(t *testing.T) { - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -1679,12 +1673,11 @@ func TestUserLog(t *testing.T) { // sched_rr_get_interval = 148 - not implemented in gvisor. spec := testutil.NewSpecWithArgs(app, "syscall", "--syscall=148") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() dir, err := ioutil.TempDir(testutil.TmpDir(), "user_log_test") if err != nil { @@ -1694,7 +1687,7 @@ func TestUserLog(t *testing.T) { // Create, start and wait for the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, UserLog: userLog, @@ -1718,72 +1711,70 @@ func TestUserLog(t *testing.T) { } func TestWaitOnExitedSandbox(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - // Run a shell that sleeps for 1 second and then exits with a - // non-zero code. - const wantExit = 17 - cmd := fmt.Sprintf("sleep 1; exit %d", wantExit) - spec := testutil.NewSpecWithArgs("/bin/sh", "-c", cmd) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + // Run a shell that sleeps for 1 second and then exits with a + // non-zero code. + const wantExit = 17 + cmd := fmt.Sprintf("sleep 1; exit %d", wantExit) + spec := testutil.NewSpecWithArgs("/bin/sh", "-c", cmd) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - // Create and Start the container. - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - c, err := New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - defer c.Destroy() - if err := c.Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + // Create and Start the container. + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + c, err := New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + defer c.Destroy() + if err := c.Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - // Wait on the sandbox. This will make an RPC to the sandbox - // and get the actual exit status of the application. - ws, err := c.Wait() - if err != nil { - t.Fatalf("error waiting on container: %v", err) - } - if got := ws.ExitStatus(); got != wantExit { - t.Errorf("got exit status %d, want %d", got, wantExit) - } + // Wait on the sandbox. This will make an RPC to the sandbox + // and get the actual exit status of the application. + ws, err := c.Wait() + if err != nil { + t.Fatalf("error waiting on container: %v", err) + } + if got := ws.ExitStatus(); got != wantExit { + t.Errorf("got exit status %d, want %d", got, wantExit) + } - // Now the sandbox has exited, but the zombie sandbox process - // still exists. Calling Wait() now will return the sandbox - // exit status. - ws, err = c.Wait() - if err != nil { - t.Fatalf("error waiting on container: %v", err) - } - if got := ws.ExitStatus(); got != wantExit { - t.Errorf("got exit status %d, want %d", got, wantExit) - } + // Now the sandbox has exited, but the zombie sandbox process + // still exists. Calling Wait() now will return the sandbox + // exit status. + ws, err = c.Wait() + if err != nil { + t.Fatalf("error waiting on container: %v", err) + } + if got := ws.ExitStatus(); got != wantExit { + t.Errorf("got exit status %d, want %d", got, wantExit) + } + }) } } func TestDestroyNotStarted(t *testing.T) { spec := testutil.NewSpecWithArgs("/bin/sleep", "100") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create the container and check that it can be destroyed. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1801,16 +1792,15 @@ func TestDestroyStarting(t *testing.T) { for i := 0; i < 10; i++ { spec := testutil.NewSpecWithArgs("/bin/sleep", "100") conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + rootDir, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create the container and check that it can be destroyed. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1845,23 +1835,23 @@ func TestDestroyStarting(t *testing.T) { } func TestCreateWorkingDir(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - - tmpDir, err := ioutil.TempDir(testutil.TmpDir(), "cwd-create") - if err != nil { - t.Fatalf("ioutil.TempDir() failed: %v", err) - } - dir := path.Join(tmpDir, "new/working/dir") + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + tmpDir, err := ioutil.TempDir(testutil.TmpDir(), "cwd-create") + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } + dir := path.Join(tmpDir, "new/working/dir") - // touch will fail if the directory doesn't exist. - spec := testutil.NewSpecWithArgs("/bin/touch", path.Join(dir, "file")) - spec.Process.Cwd = dir - spec.Root.Readonly = true + // touch will fail if the directory doesn't exist. + spec := testutil.NewSpecWithArgs("/bin/touch", path.Join(dir, "file")) + spec.Process.Cwd = dir + spec.Root.Readonly = true - if err := run(spec, conf); err != nil { - t.Fatalf("Error running container: %v", err) - } + if err := run(spec, conf); err != nil { + t.Fatalf("Error running container: %v", err) + } + }) } } @@ -1919,15 +1909,14 @@ func TestMountPropagation(t *testing.T) { } conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -1969,81 +1958,81 @@ func TestMountPropagation(t *testing.T) { } func TestMountSymlink(t *testing.T) { - for _, conf := range configs(t, overlay) { - t.Logf("Running test with conf: %+v", conf) - - dir, err := ioutil.TempDir(testutil.TmpDir(), "mount-symlink") - if err != nil { - t.Fatalf("ioutil.TempDir() failed: %v", err) - } + for name, conf := range configs(t, overlay) { + t.Run(name, func(t *testing.T) { + dir, err := ioutil.TempDir(testutil.TmpDir(), "mount-symlink") + if err != nil { + t.Fatalf("ioutil.TempDir() failed: %v", err) + } + defer os.RemoveAll(dir) - source := path.Join(dir, "source") - target := path.Join(dir, "target") - for _, path := range []string{source, target} { - if err := os.MkdirAll(path, 0777); err != nil { - t.Fatalf("os.MkdirAll(): %v", err) + source := path.Join(dir, "source") + target := path.Join(dir, "target") + for _, path := range []string{source, target} { + if err := os.MkdirAll(path, 0777); err != nil { + t.Fatalf("os.MkdirAll(): %v", err) + } } - } - f, err := os.Create(path.Join(source, "file")) - if err != nil { - t.Fatalf("os.Create(): %v", err) - } - f.Close() + f, err := os.Create(path.Join(source, "file")) + if err != nil { + t.Fatalf("os.Create(): %v", err) + } + f.Close() - link := path.Join(dir, "link") - if err := os.Symlink(target, link); err != nil { - t.Fatalf("os.Symlink(%q, %q): %v", target, link, err) - } + link := path.Join(dir, "link") + if err := os.Symlink(target, link); err != nil { + t.Fatalf("os.Symlink(%q, %q): %v", target, link, err) + } - spec := testutil.NewSpecWithArgs("/bin/sleep", "1000") + spec := testutil.NewSpecWithArgs("/bin/sleep", "1000") - // Mount to a symlink to ensure the mount code will follow it and mount - // at the symlink target. - spec.Mounts = append(spec.Mounts, specs.Mount{ - Type: "bind", - Destination: link, - Source: source, - }) + // Mount to a symlink to ensure the mount code will follow it and mount + // at the symlink target. + spec.Mounts = append(spec.Mounts, specs.Mount{ + Type: "bind", + Destination: link, + Source: source, + }) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) - if err != nil { - t.Fatalf("error setting up container: %v", err) - } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) + if err != nil { + t.Fatalf("error setting up container: %v", err) + } + defer cleanup() - args := Args{ - ID: testutil.UniqueContainerID(), - Spec: spec, - BundleDir: bundleDir, - } - cont, err := New(conf, args) - if err != nil { - t.Fatalf("creating container: %v", err) - } - defer cont.Destroy() + args := Args{ + ID: testutil.RandomContainerID(), + Spec: spec, + BundleDir: bundleDir, + } + cont, err := New(conf, args) + if err != nil { + t.Fatalf("creating container: %v", err) + } + defer cont.Destroy() - if err := cont.Start(conf); err != nil { - t.Fatalf("starting container: %v", err) - } + if err := cont.Start(conf); err != nil { + t.Fatalf("starting container: %v", err) + } - // Check that symlink was resolved and mount was created where the symlink - // is pointing to. - file := path.Join(target, "file") - execArgs := &control.ExecArgs{ - Filename: "/usr/bin/test", - Argv: []string{"test", "-f", file}, - } - if ws, err := cont.executeSync(execArgs); err != nil || ws != 0 { - t.Fatalf("exec: test -f %q, ws: %v, err: %v", file, ws, err) - } + // Check that symlink was resolved and mount was created where the symlink + // is pointing to. + file := path.Join(target, "file") + execArgs := &control.ExecArgs{ + Filename: "/usr/bin/test", + Argv: []string{"test", "-f", file}, + } + if ws, err := cont.executeSync(execArgs); err != nil || ws != 0 { + t.Fatalf("exec: test -f %q, ws: %v, err: %v", file, ws, err) + } + }) } } // Check that --net-raw disables the CAP_NET_RAW capability. func TestNetRaw(t *testing.T) { capNetRaw := strconv.FormatUint(bits.MaskOf64(int(linux.CAP_NET_RAW)), 10) - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -2106,7 +2095,7 @@ func TestTTYField(t *testing.T) { stop := testutil.StartReaper() defer stop() - testApp, err := testutil.FindFile("runsc/container/test_app/test_app") + testApp, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -2140,16 +2129,15 @@ func TestTTYField(t *testing.T) { } spec := testutil.NewSpecWithArgs(cmd...) - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } diff --git a/runsc/container/multi_container_test.go b/runsc/container/multi_container_test.go index dc2fb42ce..e3704b453 100644 --- a/runsc/container/multi_container_test.go +++ b/runsc/container/multi_container_test.go @@ -30,15 +30,15 @@ import ( "gvisor.dev/gvisor/pkg/sentry/control" "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sync" + "gvisor.dev/gvisor/pkg/test/testutil" "gvisor.dev/gvisor/runsc/boot" "gvisor.dev/gvisor/runsc/specutils" - "gvisor.dev/gvisor/runsc/testutil" ) func createSpecs(cmds ...[]string) ([]*specs.Spec, []string) { var specs []*specs.Spec var ids []string - rootID := testutil.UniqueContainerID() + rootID := testutil.RandomContainerID() for i, cmd := range cmds { spec := testutil.NewSpecWithArgs(cmd...) @@ -52,7 +52,7 @@ func createSpecs(cmds ...[]string) ([]*specs.Spec, []string) { specutils.ContainerdContainerTypeAnnotation: specutils.ContainerdContainerTypeContainer, specutils.ContainerdSandboxIDAnnotation: rootID, } - ids = append(ids, testutil.UniqueContainerID()) + ids = append(ids, testutil.RandomContainerID()) } specs = append(specs, spec) } @@ -64,23 +64,29 @@ func startContainers(conf *boot.Config, specs []*specs.Spec, ids []string) ([]*C panic("conf.RootDir not set. Call testutil.SetupRootDir() to set.") } - var containers []*Container - var bundles []string - cleanup := func() { + var ( + containers []*Container + cleanups []func() + ) + cleanups = append(cleanups, func() { for _, c := range containers { c.Destroy() } - for _, b := range bundles { - os.RemoveAll(b) + }) + cleanupAll := func() { + for _, c := range cleanups { + c() } } + localClean := specutils.MakeCleanup(cleanupAll) + defer localClean.Clean() + for i, spec := range specs { - bundleDir, err := testutil.SetupBundleDir(spec) + bundleDir, cleanup, err := testutil.SetupBundleDir(spec) if err != nil { - cleanup() return nil, nil, fmt.Errorf("error setting up container: %v", err) } - bundles = append(bundles, bundleDir) + cleanups = append(cleanups, cleanup) args := Args{ ID: ids[i], @@ -89,17 +95,17 @@ func startContainers(conf *boot.Config, specs []*specs.Spec, ids []string) ([]*C } cont, err := New(conf, args) if err != nil { - cleanup() return nil, nil, fmt.Errorf("error creating container: %v", err) } containers = append(containers, cont) if err := cont.Start(conf); err != nil { - cleanup() return nil, nil, fmt.Errorf("error starting container: %v", err) } } - return containers, cleanup, nil + + localClean.Release() + return containers, cleanupAll, nil } type execDesc struct { @@ -135,159 +141,159 @@ func createSharedMount(mount specs.Mount, name string, pod ...*specs.Spec) { // TestMultiContainerSanity checks that it is possible to run 2 dead-simple // containers in the same sandbox. func TestMultiContainerSanity(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir - // Setup the containers. - sleep := []string{"sleep", "100"} - specs, ids := createSpecs(sleep, sleep) - containers, cleanup, err := startContainers(conf, specs, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + // Setup the containers. + sleep := []string{"sleep", "100"} + specs, ids := createSpecs(sleep, sleep) + containers, cleanup, err := startContainers(conf, specs, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - // Check via ps that multiple processes are running. - expectedPL := []*control.Process{ - {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, - } - if err := waitForProcessList(containers[0], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } - expectedPL = []*control.Process{ - {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, - } - if err := waitForProcessList(containers[1], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + // Check via ps that multiple processes are running. + expectedPL := []*control.Process{ + {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, + } + if err := waitForProcessList(containers[0], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + expectedPL = []*control.Process{ + {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, + } + if err := waitForProcessList(containers[1], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + }) } } // TestMultiPIDNS checks that it is possible to run 2 dead-simple // containers in the same sandbox with different pidns. func TestMultiPIDNS(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // Setup the containers. - sleep := []string{"sleep", "100"} - testSpecs, ids := createSpecs(sleep, sleep) - testSpecs[1].Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{ - { - Type: "pid", + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // Setup the containers. + sleep := []string{"sleep", "100"} + testSpecs, ids := createSpecs(sleep, sleep) + testSpecs[1].Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{ + { + Type: "pid", + }, }, - }, - } + } - containers, cleanup, err := startContainers(conf, testSpecs, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + containers, cleanup, err := startContainers(conf, testSpecs, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - // Check via ps that multiple processes are running. - expectedPL := []*control.Process{ - {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, - } - if err := waitForProcessList(containers[0], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } - expectedPL = []*control.Process{ - {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, - } - if err := waitForProcessList(containers[1], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + // Check via ps that multiple processes are running. + expectedPL := []*control.Process{ + {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, + } + if err := waitForProcessList(containers[0], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + expectedPL = []*control.Process{ + {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, + } + if err := waitForProcessList(containers[1], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + }) } } // TestMultiPIDNSPath checks the pidns path. func TestMultiPIDNSPath(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // Setup the containers. - sleep := []string{"sleep", "100"} - testSpecs, ids := createSpecs(sleep, sleep, sleep) - testSpecs[0].Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{ - { - Type: "pid", - Path: "/proc/1/ns/pid", + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // Setup the containers. + sleep := []string{"sleep", "100"} + testSpecs, ids := createSpecs(sleep, sleep, sleep) + testSpecs[0].Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{ + { + Type: "pid", + Path: "/proc/1/ns/pid", + }, }, - }, - } - testSpecs[1].Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{ - { - Type: "pid", - Path: "/proc/1/ns/pid", + } + testSpecs[1].Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{ + { + Type: "pid", + Path: "/proc/1/ns/pid", + }, }, - }, - } - testSpecs[2].Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{ - { - Type: "pid", - Path: "/proc/2/ns/pid", + } + testSpecs[2].Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{ + { + Type: "pid", + Path: "/proc/2/ns/pid", + }, }, - }, - } + } - containers, cleanup, err := startContainers(conf, testSpecs, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + containers, cleanup, err := startContainers(conf, testSpecs, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - // Check via ps that multiple processes are running. - expectedPL := []*control.Process{ - {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, - } - if err := waitForProcessList(containers[0], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } - if err := waitForProcessList(containers[2], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + // Check via ps that multiple processes are running. + expectedPL := []*control.Process{ + {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, + } + if err := waitForProcessList(containers[0], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + if err := waitForProcessList(containers[2], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } - expectedPL = []*control.Process{ - {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, - } - if err := waitForProcessList(containers[1], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + expectedPL = []*control.Process{ + {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, + } + if err := waitForProcessList(containers[1], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } + }) } } func TestMultiContainerWait(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -361,11 +367,11 @@ func TestMultiContainerWait(t *testing.T) { // TestExecWait ensures what we can wait containers and individual processes in the // sandbox that have already exited. func TestExecWait(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -457,11 +463,11 @@ func TestMultiContainerMount(t *testing.T) { }) // Setup the containers. - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -484,174 +490,174 @@ func TestMultiContainerMount(t *testing.T) { // TestMultiContainerSignal checks that it is possible to signal individual // containers without killing the entire sandbox. func TestMultiContainerSignal(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir - // Setup the containers. - sleep := []string{"sleep", "100"} - specs, ids := createSpecs(sleep, sleep) - containers, cleanup, err := startContainers(conf, specs, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + // Setup the containers. + sleep := []string{"sleep", "100"} + specs, ids := createSpecs(sleep, sleep) + containers, cleanup, err := startContainers(conf, specs, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - // Check via ps that container 1 process is running. - expectedPL := []*control.Process{ - {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, - } + // Check via ps that container 1 process is running. + expectedPL := []*control.Process{ + {PID: 2, Cmd: "sleep", Threads: []kernel.ThreadID{2}}, + } - if err := waitForProcessList(containers[1], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + if err := waitForProcessList(containers[1], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } - // Kill process 2. - if err := containers[1].SignalContainer(syscall.SIGKILL, false); err != nil { - t.Errorf("failed to kill process 2: %v", err) - } + // Kill process 2. + if err := containers[1].SignalContainer(syscall.SIGKILL, false); err != nil { + t.Errorf("failed to kill process 2: %v", err) + } - // Make sure process 1 is still running. - expectedPL = []*control.Process{ - {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, - } - if err := waitForProcessList(containers[0], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + // Make sure process 1 is still running. + expectedPL = []*control.Process{ + {PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}, + } + if err := waitForProcessList(containers[0], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } - // goferPid is reset when container is destroyed. - goferPid := containers[1].GoferPid + // goferPid is reset when container is destroyed. + goferPid := containers[1].GoferPid - // Destroy container and ensure container's gofer process has exited. - if err := containers[1].Destroy(); err != nil { - t.Errorf("failed to destroy container: %v", err) - } - _, _, err = specutils.RetryEintr(func() (uintptr, uintptr, error) { - cpid, err := syscall.Wait4(goferPid, nil, 0, nil) - return uintptr(cpid), 0, err - }) - if err != syscall.ECHILD { - t.Errorf("error waiting for gofer to exit: %v", err) - } - // Make sure process 1 is still running. - if err := waitForProcessList(containers[0], expectedPL); err != nil { - t.Errorf("failed to wait for sleep to start: %v", err) - } + // Destroy container and ensure container's gofer process has exited. + if err := containers[1].Destroy(); err != nil { + t.Errorf("failed to destroy container: %v", err) + } + _, _, err = specutils.RetryEintr(func() (uintptr, uintptr, error) { + cpid, err := syscall.Wait4(goferPid, nil, 0, nil) + return uintptr(cpid), 0, err + }) + if err != syscall.ECHILD { + t.Errorf("error waiting for gofer to exit: %v", err) + } + // Make sure process 1 is still running. + if err := waitForProcessList(containers[0], expectedPL); err != nil { + t.Errorf("failed to wait for sleep to start: %v", err) + } - // Now that process 2 is gone, ensure we get an error trying to - // signal it again. - if err := containers[1].SignalContainer(syscall.SIGKILL, false); err == nil { - t.Errorf("container %q shouldn't exist, but we were able to signal it", containers[1].ID) - } + // Now that process 2 is gone, ensure we get an error trying to + // signal it again. + if err := containers[1].SignalContainer(syscall.SIGKILL, false); err == nil { + t.Errorf("container %q shouldn't exist, but we were able to signal it", containers[1].ID) + } - // Kill process 1. - if err := containers[0].SignalContainer(syscall.SIGKILL, false); err != nil { - t.Errorf("failed to kill process 1: %v", err) - } + // Kill process 1. + if err := containers[0].SignalContainer(syscall.SIGKILL, false); err != nil { + t.Errorf("failed to kill process 1: %v", err) + } - // Ensure that container's gofer and sandbox process are no more. - err = blockUntilWaitable(containers[0].GoferPid) - if err != nil && err != syscall.ECHILD { - t.Errorf("error waiting for gofer to exit: %v", err) - } + // Ensure that container's gofer and sandbox process are no more. + err = blockUntilWaitable(containers[0].GoferPid) + if err != nil && err != syscall.ECHILD { + t.Errorf("error waiting for gofer to exit: %v", err) + } - err = blockUntilWaitable(containers[0].Sandbox.Pid) - if err != nil && err != syscall.ECHILD { - t.Errorf("error waiting for sandbox to exit: %v", err) - } + err = blockUntilWaitable(containers[0].Sandbox.Pid) + if err != nil && err != syscall.ECHILD { + t.Errorf("error waiting for sandbox to exit: %v", err) + } - // The sentry should be gone, so signaling should yield an error. - if err := containers[0].SignalContainer(syscall.SIGKILL, false); err == nil { - t.Errorf("sandbox %q shouldn't exist, but we were able to signal it", containers[0].Sandbox.ID) - } + // The sentry should be gone, so signaling should yield an error. + if err := containers[0].SignalContainer(syscall.SIGKILL, false); err == nil { + t.Errorf("sandbox %q shouldn't exist, but we were able to signal it", containers[0].Sandbox.ID) + } - if err := containers[0].Destroy(); err != nil { - t.Errorf("failed to destroy container: %v", err) - } + if err := containers[0].Destroy(); err != nil { + t.Errorf("failed to destroy container: %v", err) + } + }) } } // TestMultiContainerDestroy checks that container are properly cleaned-up when // they are destroyed. func TestMultiContainerDestroy(t *testing.T) { - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // First container will remain intact while the second container is killed. - podSpecs, ids := createSpecs( - []string{"sleep", "100"}, - []string{app, "fork-bomb"}) - - // Run the fork bomb in a PID namespace to prevent processes to be - // re-parented to PID=1 in the root container. - podSpecs[1].Linux = &specs.Linux{ - Namespaces: []specs.LinuxNamespace{{Type: "pid"}}, - } - containers, cleanup, err := startContainers(conf, podSpecs, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // First container will remain intact while the second container is killed. + podSpecs, ids := createSpecs( + []string{"sleep", "100"}, + []string{app, "fork-bomb"}) + + // Run the fork bomb in a PID namespace to prevent processes to be + // re-parented to PID=1 in the root container. + podSpecs[1].Linux = &specs.Linux{ + Namespaces: []specs.LinuxNamespace{{Type: "pid"}}, + } + containers, cleanup, err := startContainers(conf, podSpecs, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - // Exec more processes to ensure signal all works for exec'd processes too. - args := &control.ExecArgs{ - Filename: app, - Argv: []string{app, "fork-bomb"}, - } - if _, err := containers[1].Execute(args); err != nil { - t.Fatalf("error exec'ing: %v", err) - } + // Exec more processes to ensure signal all works for exec'd processes too. + args := &control.ExecArgs{ + Filename: app, + Argv: []string{app, "fork-bomb"}, + } + if _, err := containers[1].Execute(args); err != nil { + t.Fatalf("error exec'ing: %v", err) + } - // Let it brew... - time.Sleep(500 * time.Millisecond) + // Let it brew... + time.Sleep(500 * time.Millisecond) - if err := containers[1].Destroy(); err != nil { - t.Fatalf("error destroying container: %v", err) - } + if err := containers[1].Destroy(); err != nil { + t.Fatalf("error destroying container: %v", err) + } - // Check that destroy killed all processes belonging to the container and - // waited for them to exit before returning. - pss, err := containers[0].Sandbox.Processes("") - if err != nil { - t.Fatalf("error getting process data from sandbox: %v", err) - } - expectedPL := []*control.Process{{PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}} - if r, err := procListsEqual(pss, expectedPL); !r { - t.Errorf("container got process list: %s, want: %s: error: %v", - procListToString(pss), procListToString(expectedPL), err) - } + // Check that destroy killed all processes belonging to the container and + // waited for them to exit before returning. + pss, err := containers[0].Sandbox.Processes("") + if err != nil { + t.Fatalf("error getting process data from sandbox: %v", err) + } + expectedPL := []*control.Process{{PID: 1, Cmd: "sleep", Threads: []kernel.ThreadID{1}}} + if r, err := procListsEqual(pss, expectedPL); !r { + t.Errorf("container got process list: %s, want: %s: error: %v", + procListToString(pss), procListToString(expectedPL), err) + } - // Check that cont.Destroy is safe to call multiple times. - if err := containers[1].Destroy(); err != nil { - t.Errorf("error destroying container: %v", err) - } + // Check that cont.Destroy is safe to call multiple times. + if err := containers[1].Destroy(); err != nil { + t.Errorf("error destroying container: %v", err) + } + }) } } func TestMultiContainerProcesses(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -706,11 +712,11 @@ func TestMultiContainerProcesses(t *testing.T) { // TestMultiContainerKillAll checks that all process that belong to a container // are killed when SIGKILL is sent to *all* processes in that container. func TestMultiContainerKillAll(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -721,7 +727,7 @@ func TestMultiContainerKillAll(t *testing.T) { {killContainer: true}, {killContainer: false}, } { - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -739,11 +745,11 @@ func TestMultiContainerKillAll(t *testing.T) { // Wait until all processes are created. rootProcCount := int(math.Pow(2, 3) - 1) if err := waitForProcessCount(containers[0], rootProcCount); err != nil { - t.Fatal(err) + t.Fatalf("error waitting for processes: %v", err) } procCount := int(math.Pow(2, 5) - 1) if err := waitForProcessCount(containers[1], procCount); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } // Exec more processes to ensure signal works for exec'd processes too. @@ -757,7 +763,7 @@ func TestMultiContainerKillAll(t *testing.T) { // Wait for these new processes to start. procCount += int(math.Pow(2, 3) - 1) if err := waitForProcessCount(containers[1], procCount); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } if tc.killContainer { @@ -790,11 +796,11 @@ func TestMultiContainerKillAll(t *testing.T) { // Check that all processes are gone. if err := waitForProcessCount(containers[1], 0); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } // Check that root container was not affected. if err := waitForProcessCount(containers[0], rootProcCount); err != nil { - t.Fatal(err) + t.Fatalf("error waiting for processes: %v", err) } } } @@ -805,17 +811,16 @@ func TestMultiContainerDestroyNotStarted(t *testing.T) { []string{"/bin/sleep", "100"}) conf := testutil.TestConfig(t) - rootDir, rootBundleDir, err := testutil.SetupContainer(specs[0], conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(specs[0], conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(rootBundleDir) + defer cleanup() rootArgs := Args{ ID: ids[0], Spec: specs[0], - BundleDir: rootBundleDir, + BundleDir: bundleDir, } root, err := New(conf, rootArgs) if err != nil { @@ -827,11 +832,11 @@ func TestMultiContainerDestroyNotStarted(t *testing.T) { } // Create and destroy sub-container. - bundleDir, err := testutil.SetupBundleDir(specs[1]) + bundleDir, cleanupSub, err := testutil.SetupBundleDir(specs[1]) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(bundleDir) + defer cleanupSub() args := Args{ ID: ids[1], @@ -859,17 +864,16 @@ func TestMultiContainerDestroyStarting(t *testing.T) { specs, ids := createSpecs(cmds...) conf := testutil.TestConfig(t) - rootDir, rootBundleDir, err := testutil.SetupContainer(specs[0], conf) + rootDir, bundleDir, cleanup, err := testutil.SetupContainer(specs[0], conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(rootBundleDir) + defer cleanup() rootArgs := Args{ ID: ids[0], Spec: specs[0], - BundleDir: rootBundleDir, + BundleDir: bundleDir, } root, err := New(conf, rootArgs) if err != nil { @@ -886,16 +890,16 @@ func TestMultiContainerDestroyStarting(t *testing.T) { continue // skip root container } - bundleDir, err := testutil.SetupBundleDir(specs[i]) + bundleDir, cleanup, err := testutil.SetupBundleDir(specs[i]) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(bundleDir) + defer cleanup() rootArgs := Args{ ID: ids[i], Spec: specs[i], - BundleDir: rootBundleDir, + BundleDir: bundleDir, } cont, err := New(conf, rootArgs) if err != nil { @@ -937,11 +941,11 @@ func TestMultiContainerDifferentFilesystems(t *testing.T) { script := fmt.Sprintf("if [ -f %q ]; then exit 1; else touch %q; fi", filename, filename) cmd := []string{"sh", "-c", script} - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -977,7 +981,7 @@ func TestMultiContainerDifferentFilesystems(t *testing.T) { // TestMultiContainerContainerDestroyStress tests that IO operations continue // to work after containers have been stopped and gofers killed. func TestMultiContainerContainerDestroyStress(t *testing.T) { - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -1007,12 +1011,11 @@ func TestMultiContainerContainerDestroyStress(t *testing.T) { childrenIDs := allIDs[1:] conf := testutil.TestConfig(t) - rootDir, bundleDir, err := testutil.SetupContainer(rootSpec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(rootSpec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Start root container. rootArgs := Args{ @@ -1038,11 +1041,11 @@ func TestMultiContainerContainerDestroyStress(t *testing.T) { var children []*Container for j, spec := range specs { - bundleDir, err := testutil.SetupBundleDir(spec) + bundleDir, cleanup, err := testutil.SetupBundleDir(spec) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(bundleDir) + defer cleanup() args := Args{ ID: ids[j], @@ -1080,306 +1083,306 @@ func TestMultiContainerContainerDestroyStress(t *testing.T) { // Test that pod shared mounts are properly mounted in 2 containers and that // changes from one container is reflected in the other. func TestMultiContainerSharedMount(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // Setup the containers. - sleep := []string{"sleep", "100"} - podSpec, ids := createSpecs(sleep, sleep) - mnt0 := specs.Mount{ - Destination: "/mydir/test", - Source: "/some/dir", - Type: "tmpfs", - Options: nil, - } - podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // Setup the containers. + sleep := []string{"sleep", "100"} + podSpec, ids := createSpecs(sleep, sleep) + mnt0 := specs.Mount{ + Destination: "/mydir/test", + Source: "/some/dir", + Type: "tmpfs", + Options: nil, + } + podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) - mnt1 := mnt0 - mnt1.Destination = "/mydir2/test2" - podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) + mnt1 := mnt0 + mnt1.Destination = "/mydir2/test2" + podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) - createSharedMount(mnt0, "test-mount", podSpec...) + createSharedMount(mnt0, "test-mount", podSpec...) - containers, cleanup, err := startContainers(conf, podSpec, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + containers, cleanup, err := startContainers(conf, podSpec, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - file0 := path.Join(mnt0.Destination, "abc") - file1 := path.Join(mnt1.Destination, "abc") - execs := []execDesc{ - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-d", mnt0.Destination}, - desc: "directory is mounted in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-d", mnt1.Destination}, - desc: "directory is mounted in container1", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/touch", file0}, - desc: "create file in container0", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-f", file0}, - desc: "file appears in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-f", file1}, - desc: "file appears in container1", - }, - { - c: containers[1], - cmd: []string{"/bin/rm", file1}, - desc: "file removed from container1", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "!", "-f", file0}, - desc: "file removed from container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "!", "-f", file1}, - desc: "file removed from container1", - }, - { - c: containers[1], - cmd: []string{"/bin/mkdir", file1}, - desc: "create directory in container1", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-d", file0}, - desc: "dir appears in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-d", file1}, - desc: "dir appears in container1", - }, - { - c: containers[0], - cmd: []string{"/bin/rmdir", file0}, - desc: "create directory in container0", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "!", "-d", file0}, - desc: "dir removed from container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "!", "-d", file1}, - desc: "dir removed from container1", - }, - } - if err := execMany(execs); err != nil { - t.Fatal(err.Error()) - } + file0 := path.Join(mnt0.Destination, "abc") + file1 := path.Join(mnt1.Destination, "abc") + execs := []execDesc{ + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-d", mnt0.Destination}, + desc: "directory is mounted in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-d", mnt1.Destination}, + desc: "directory is mounted in container1", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/touch", file0}, + desc: "create file in container0", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-f", file0}, + desc: "file appears in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-f", file1}, + desc: "file appears in container1", + }, + { + c: containers[1], + cmd: []string{"/bin/rm", file1}, + desc: "file removed from container1", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "!", "-f", file0}, + desc: "file removed from container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "!", "-f", file1}, + desc: "file removed from container1", + }, + { + c: containers[1], + cmd: []string{"/bin/mkdir", file1}, + desc: "create directory in container1", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-d", file0}, + desc: "dir appears in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-d", file1}, + desc: "dir appears in container1", + }, + { + c: containers[0], + cmd: []string{"/bin/rmdir", file0}, + desc: "create directory in container0", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "!", "-d", file0}, + desc: "dir removed from container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "!", "-d", file1}, + desc: "dir removed from container1", + }, + } + if err := execMany(execs); err != nil { + t.Fatal(err.Error()) + } + }) } } // Test that pod mounts are mounted as readonly when requested. func TestMultiContainerSharedMountReadonly(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // Setup the containers. - sleep := []string{"sleep", "100"} - podSpec, ids := createSpecs(sleep, sleep) - mnt0 := specs.Mount{ - Destination: "/mydir/test", - Source: "/some/dir", - Type: "tmpfs", - Options: []string{"ro"}, - } - podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // Setup the containers. + sleep := []string{"sleep", "100"} + podSpec, ids := createSpecs(sleep, sleep) + mnt0 := specs.Mount{ + Destination: "/mydir/test", + Source: "/some/dir", + Type: "tmpfs", + Options: []string{"ro"}, + } + podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) - mnt1 := mnt0 - mnt1.Destination = "/mydir2/test2" - podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) + mnt1 := mnt0 + mnt1.Destination = "/mydir2/test2" + podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) - createSharedMount(mnt0, "test-mount", podSpec...) + createSharedMount(mnt0, "test-mount", podSpec...) - containers, cleanup, err := startContainers(conf, podSpec, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + containers, cleanup, err := startContainers(conf, podSpec, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - file0 := path.Join(mnt0.Destination, "abc") - file1 := path.Join(mnt1.Destination, "abc") - execs := []execDesc{ - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-d", mnt0.Destination}, - desc: "directory is mounted in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-d", mnt1.Destination}, - desc: "directory is mounted in container1", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/touch", file0}, - want: 1, - desc: "fails to write to container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/touch", file1}, - want: 1, - desc: "fails to write to container1", - }, - } - if err := execMany(execs); err != nil { - t.Fatal(err.Error()) - } + file0 := path.Join(mnt0.Destination, "abc") + file1 := path.Join(mnt1.Destination, "abc") + execs := []execDesc{ + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-d", mnt0.Destination}, + desc: "directory is mounted in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-d", mnt1.Destination}, + desc: "directory is mounted in container1", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/touch", file0}, + want: 1, + desc: "fails to write to container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/touch", file1}, + want: 1, + desc: "fails to write to container1", + }, + } + if err := execMany(execs); err != nil { + t.Fatal(err.Error()) + } + }) } } // Test that shared pod mounts continue to work after container is restarted. func TestMultiContainerSharedMountRestart(t *testing.T) { - for _, conf := range configs(t, all...) { - t.Logf("Running test with conf: %+v", conf) - - rootDir, err := testutil.SetupRootDir() - if err != nil { - t.Fatalf("error creating root dir: %v", err) - } - defer os.RemoveAll(rootDir) - conf.RootDir = rootDir - - // Setup the containers. - sleep := []string{"sleep", "100"} - podSpec, ids := createSpecs(sleep, sleep) - mnt0 := specs.Mount{ - Destination: "/mydir/test", - Source: "/some/dir", - Type: "tmpfs", - Options: nil, - } - podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) + for name, conf := range configs(t, all...) { + t.Run(name, func(t *testing.T) { + rootDir, cleanup, err := testutil.SetupRootDir() + if err != nil { + t.Fatalf("error creating root dir: %v", err) + } + defer cleanup() + conf.RootDir = rootDir + + // Setup the containers. + sleep := []string{"sleep", "100"} + podSpec, ids := createSpecs(sleep, sleep) + mnt0 := specs.Mount{ + Destination: "/mydir/test", + Source: "/some/dir", + Type: "tmpfs", + Options: nil, + } + podSpec[0].Mounts = append(podSpec[0].Mounts, mnt0) - mnt1 := mnt0 - mnt1.Destination = "/mydir2/test2" - podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) + mnt1 := mnt0 + mnt1.Destination = "/mydir2/test2" + podSpec[1].Mounts = append(podSpec[1].Mounts, mnt1) - createSharedMount(mnt0, "test-mount", podSpec...) + createSharedMount(mnt0, "test-mount", podSpec...) - containers, cleanup, err := startContainers(conf, podSpec, ids) - if err != nil { - t.Fatalf("error starting containers: %v", err) - } - defer cleanup() + containers, cleanup, err := startContainers(conf, podSpec, ids) + if err != nil { + t.Fatalf("error starting containers: %v", err) + } + defer cleanup() - file0 := path.Join(mnt0.Destination, "abc") - file1 := path.Join(mnt1.Destination, "abc") - execs := []execDesc{ - { - c: containers[0], - cmd: []string{"/usr/bin/touch", file0}, - desc: "create file in container0", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-f", file0}, - desc: "file appears in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-f", file1}, - desc: "file appears in container1", - }, - } - if err := execMany(execs); err != nil { - t.Fatal(err.Error()) - } + file0 := path.Join(mnt0.Destination, "abc") + file1 := path.Join(mnt1.Destination, "abc") + execs := []execDesc{ + { + c: containers[0], + cmd: []string{"/usr/bin/touch", file0}, + desc: "create file in container0", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-f", file0}, + desc: "file appears in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-f", file1}, + desc: "file appears in container1", + }, + } + if err := execMany(execs); err != nil { + t.Fatal(err.Error()) + } - containers[1].Destroy() + containers[1].Destroy() - bundleDir, err := testutil.SetupBundleDir(podSpec[1]) - if err != nil { - t.Fatalf("error restarting container: %v", err) - } - defer os.RemoveAll(bundleDir) + bundleDir, cleanup, err := testutil.SetupBundleDir(podSpec[1]) + if err != nil { + t.Fatalf("error restarting container: %v", err) + } + defer cleanup() - args := Args{ - ID: ids[1], - Spec: podSpec[1], - BundleDir: bundleDir, - } - containers[1], err = New(conf, args) - if err != nil { - t.Fatalf("error creating container: %v", err) - } - if err := containers[1].Start(conf); err != nil { - t.Fatalf("error starting container: %v", err) - } + args := Args{ + ID: ids[1], + Spec: podSpec[1], + BundleDir: bundleDir, + } + containers[1], err = New(conf, args) + if err != nil { + t.Fatalf("error creating container: %v", err) + } + if err := containers[1].Start(conf); err != nil { + t.Fatalf("error starting container: %v", err) + } - execs = []execDesc{ - { - c: containers[0], - cmd: []string{"/usr/bin/test", "-f", file0}, - desc: "file is still in container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "-f", file1}, - desc: "file is still in container1", - }, - { - c: containers[1], - cmd: []string{"/bin/rm", file1}, - desc: "file removed from container1", - }, - { - c: containers[0], - cmd: []string{"/usr/bin/test", "!", "-f", file0}, - desc: "file removed from container0", - }, - { - c: containers[1], - cmd: []string{"/usr/bin/test", "!", "-f", file1}, - desc: "file removed from container1", - }, - } - if err := execMany(execs); err != nil { - t.Fatal(err.Error()) - } + execs = []execDesc{ + { + c: containers[0], + cmd: []string{"/usr/bin/test", "-f", file0}, + desc: "file is still in container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "-f", file1}, + desc: "file is still in container1", + }, + { + c: containers[1], + cmd: []string{"/bin/rm", file1}, + desc: "file removed from container1", + }, + { + c: containers[0], + cmd: []string{"/usr/bin/test", "!", "-f", file0}, + desc: "file removed from container0", + }, + { + c: containers[1], + cmd: []string{"/usr/bin/test", "!", "-f", file1}, + desc: "file removed from container1", + }, + } + if err := execMany(execs); err != nil { + t.Fatal(err.Error()) + } + }) } } // Test that unsupported pod mounts options are ignored when matching master and // slave mounts. func TestMultiContainerSharedMountUnsupportedOptions(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -1428,7 +1431,7 @@ func TestMultiContainerSharedMountUnsupportedOptions(t *testing.T) { // Test that one container can send an FD to another container, even though // they have distinct MountNamespaces. func TestMultiContainerMultiRootCanHandleFDs(t *testing.T) { - app, err := testutil.FindFile("runsc/container/test_app/test_app") + app, err := testutil.FindFile("test/cmd/test_app/test_app") if err != nil { t.Fatal("error finding test_app:", err) } @@ -1457,11 +1460,11 @@ func TestMultiContainerMultiRootCanHandleFDs(t *testing.T) { Type: "tmpfs", } - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -1494,11 +1497,11 @@ func TestMultiContainerMultiRootCanHandleFDs(t *testing.T) { // Test that container is destroyed when Gofer is killed. func TestMultiContainerGoferKilled(t *testing.T) { - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -1581,11 +1584,11 @@ func TestMultiContainerLoadSandbox(t *testing.T) { sleep := []string{"sleep", "100"} specs, ids := createSpecs(sleep, sleep, sleep) - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir @@ -1614,7 +1617,7 @@ func TestMultiContainerLoadSandbox(t *testing.T) { } // Create a valid but empty container directory. - randomCID := testutil.UniqueContainerID() + randomCID := testutil.RandomContainerID() dir = filepath.Join(conf.RootDir, randomCID) if err := os.MkdirAll(dir, 0755); err != nil { t.Fatalf("os.MkdirAll(%q)=%v", dir, err) @@ -1681,11 +1684,11 @@ func TestMultiContainerRunNonRoot(t *testing.T) { Type: "bind", }) - rootDir, err := testutil.SetupRootDir() + rootDir, cleanup, err := testutil.SetupRootDir() if err != nil { t.Fatalf("error creating root dir: %v", err) } - defer os.RemoveAll(rootDir) + defer cleanup() conf := testutil.TestConfig(t) conf.RootDir = rootDir diff --git a/runsc/container/shared_volume_test.go b/runsc/container/shared_volume_test.go index f80852414..bac177a88 100644 --- a/runsc/container/shared_volume_test.go +++ b/runsc/container/shared_volume_test.go @@ -24,8 +24,8 @@ import ( "gvisor.dev/gvisor/pkg/sentry/control" "gvisor.dev/gvisor/pkg/sentry/kernel/auth" + "gvisor.dev/gvisor/pkg/test/testutil" "gvisor.dev/gvisor/runsc/boot" - "gvisor.dev/gvisor/runsc/testutil" ) // TestSharedVolume checks that modifications to a volume mount are propagated @@ -33,7 +33,6 @@ import ( func TestSharedVolume(t *testing.T) { conf := testutil.TestConfig(t) conf.FileAccess = boot.FileAccessShared - t.Logf("Running test with conf: %+v", conf) // Main process just sleeps. We will use "exec" to probe the state of // the filesystem. @@ -44,16 +43,15 @@ func TestSharedVolume(t *testing.T) { t.Fatalf("TempDir failed: %v", err) } - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } @@ -192,7 +190,6 @@ func checkFile(c *Container, filename string, want []byte) error { func TestSharedVolumeFile(t *testing.T) { conf := testutil.TestConfig(t) conf.FileAccess = boot.FileAccessShared - t.Logf("Running test with conf: %+v", conf) // Main process just sleeps. We will use "exec" to probe the state of // the filesystem. @@ -203,16 +200,15 @@ func TestSharedVolumeFile(t *testing.T) { t.Fatalf("TempDir failed: %v", err) } - rootDir, bundleDir, err := testutil.SetupContainer(spec, conf) + _, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf) if err != nil { t.Fatalf("error setting up container: %v", err) } - defer os.RemoveAll(rootDir) - defer os.RemoveAll(bundleDir) + defer cleanup() // Create and start the container. args := Args{ - ID: testutil.UniqueContainerID(), + ID: testutil.RandomContainerID(), Spec: spec, BundleDir: bundleDir, } diff --git a/runsc/container/test_app/BUILD b/runsc/container/test_app/BUILD deleted file mode 100644 index 0defbd9fc..000000000 --- a/runsc/container/test_app/BUILD +++ /dev/null @@ -1,21 +0,0 @@ -load("//tools:defs.bzl", "go_binary") - -package(licenses = ["notice"]) - -go_binary( - name = "test_app", - testonly = 1, - srcs = [ - "fds.go", - "test_app.go", - ], - pure = True, - visibility = ["//runsc/container:__pkg__"], - deps = [ - "//pkg/unet", - "//runsc/flag", - "//runsc/testutil", - "@com_github_google_subcommands//:go_default_library", - "@com_github_kr_pty//:go_default_library", - ], -) diff --git a/runsc/container/test_app/fds.go b/runsc/container/test_app/fds.go deleted file mode 100644 index 2a146a2c3..000000000 --- a/runsc/container/test_app/fds.go +++ /dev/null @@ -1,185 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package main - -import ( - "context" - "io/ioutil" - "log" - "os" - "time" - - "github.com/google/subcommands" - "gvisor.dev/gvisor/pkg/unet" - "gvisor.dev/gvisor/runsc/flag" - "gvisor.dev/gvisor/runsc/testutil" -) - -const fileContents = "foobarbaz" - -// fdSender will open a file and send the FD over a unix domain socket. -type fdSender struct { - socketPath string -} - -// Name implements subcommands.Command.Name. -func (*fdSender) Name() string { - return "fd_sender" -} - -// Synopsis implements subcommands.Command.Synopsys. -func (*fdSender) Synopsis() string { - return "creates a file and sends the FD over the socket" -} - -// Usage implements subcommands.Command.Usage. -func (*fdSender) Usage() string { - return "fd_sender <flags>" -} - -// SetFlags implements subcommands.Command.SetFlags. -func (fds *fdSender) SetFlags(f *flag.FlagSet) { - f.StringVar(&fds.socketPath, "socket", "", "path to socket") -} - -// Execute implements subcommands.Command.Execute. -func (fds *fdSender) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - if fds.socketPath == "" { - log.Fatalf("socket flag must be set") - } - - dir, err := ioutil.TempDir("", "") - if err != nil { - log.Fatalf("TempDir failed: %v", err) - } - - fileToSend, err := ioutil.TempFile(dir, "") - if err != nil { - log.Fatalf("TempFile failed: %v", err) - } - defer fileToSend.Close() - - if _, err := fileToSend.WriteString(fileContents); err != nil { - log.Fatalf("Write(%q) failed: %v", fileContents, err) - } - - // Receiver may not be started yet, so try connecting in a poll loop. - var s *unet.Socket - if err := testutil.Poll(func() error { - var err error - s, err = unet.Connect(fds.socketPath, true /* SEQPACKET, so we can send empty message with FD */) - return err - }, 10*time.Second); err != nil { - log.Fatalf("Error connecting to socket %q: %v", fds.socketPath, err) - } - defer s.Close() - - w := s.Writer(true) - w.ControlMessage.PackFDs(int(fileToSend.Fd())) - if _, err := w.WriteVec([][]byte{[]byte{'a'}}); err != nil { - log.Fatalf("Error sending FD %q over socket %q: %v", fileToSend.Fd(), fds.socketPath, err) - } - - log.Print("FD SENDER exiting successfully") - return subcommands.ExitSuccess -} - -// fdReceiver receives an FD from a unix domain socket and does things to it. -type fdReceiver struct { - socketPath string -} - -// Name implements subcommands.Command.Name. -func (*fdReceiver) Name() string { - return "fd_receiver" -} - -// Synopsis implements subcommands.Command.Synopsys. -func (*fdReceiver) Synopsis() string { - return "reads an FD from a unix socket, and then does things to it" -} - -// Usage implements subcommands.Command.Usage. -func (*fdReceiver) Usage() string { - return "fd_receiver <flags>" -} - -// SetFlags implements subcommands.Command.SetFlags. -func (fdr *fdReceiver) SetFlags(f *flag.FlagSet) { - f.StringVar(&fdr.socketPath, "socket", "", "path to socket") -} - -// Execute implements subcommands.Command.Execute. -func (fdr *fdReceiver) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - if fdr.socketPath == "" { - log.Fatalf("Flags cannot be empty, given: socket: %q", fdr.socketPath) - } - - ss, err := unet.BindAndListen(fdr.socketPath, true /* packet */) - if err != nil { - log.Fatalf("BindAndListen(%q) failed: %v", fdr.socketPath, err) - } - defer ss.Close() - - var s *unet.Socket - c := make(chan error, 1) - go func() { - var err error - s, err = ss.Accept() - c <- err - }() - - select { - case err := <-c: - if err != nil { - log.Fatalf("Accept() failed: %v", err) - } - case <-time.After(10 * time.Second): - log.Fatalf("Timeout waiting for accept") - } - - r := s.Reader(true) - r.EnableFDs(1) - b := [][]byte{{'a'}} - if n, err := r.ReadVec(b); n != 1 || err != nil { - log.Fatalf("ReadVec got n=%d err %v (wanted 0, nil)", n, err) - } - - fds, err := r.ExtractFDs() - if err != nil { - log.Fatalf("ExtractFD() got err %v", err) - } - if len(fds) != 1 { - log.Fatalf("ExtractFD() got %d FDs, wanted 1", len(fds)) - } - fd := fds[0] - - file := os.NewFile(uintptr(fd), "received file") - defer file.Close() - if _, err := file.Seek(0, os.SEEK_SET); err != nil { - log.Fatalf("Seek(0, 0) failed: %v", err) - } - - got, err := ioutil.ReadAll(file) - if err != nil { - log.Fatalf("ReadAll failed: %v", err) - } - if string(got) != fileContents { - log.Fatalf("ReadAll got %q want %q", string(got), fileContents) - } - - log.Print("FD RECEIVER exiting successfully") - return subcommands.ExitSuccess -} diff --git a/runsc/container/test_app/test_app.go b/runsc/container/test_app/test_app.go deleted file mode 100644 index 5f1c4b7d6..000000000 --- a/runsc/container/test_app/test_app.go +++ /dev/null @@ -1,394 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Binary test_app is like a swiss knife for tests that need to run anything -// inside the sandbox. New functionality can be added with new commands. -package main - -import ( - "context" - "fmt" - "io" - "io/ioutil" - "log" - "net" - "os" - "os/exec" - "regexp" - "strconv" - sys "syscall" - "time" - - "github.com/google/subcommands" - "github.com/kr/pty" - "gvisor.dev/gvisor/runsc/flag" - "gvisor.dev/gvisor/runsc/testutil" -) - -func main() { - subcommands.Register(subcommands.HelpCommand(), "") - subcommands.Register(subcommands.FlagsCommand(), "") - subcommands.Register(new(capability), "") - subcommands.Register(new(fdReceiver), "") - subcommands.Register(new(fdSender), "") - subcommands.Register(new(forkBomb), "") - subcommands.Register(new(ptyRunner), "") - subcommands.Register(new(reaper), "") - subcommands.Register(new(syscall), "") - subcommands.Register(new(taskTree), "") - subcommands.Register(new(uds), "") - - flag.Parse() - - exitCode := subcommands.Execute(context.Background()) - os.Exit(int(exitCode)) -} - -type uds struct { - fileName string - socketPath string -} - -// Name implements subcommands.Command.Name. -func (*uds) Name() string { - return "uds" -} - -// Synopsis implements subcommands.Command.Synopsys. -func (*uds) Synopsis() string { - return "creates unix domain socket client and server. Client sends a contant flow of sequential numbers. Server prints them to --file" -} - -// Usage implements subcommands.Command.Usage. -func (*uds) Usage() string { - return "uds <flags>" -} - -// SetFlags implements subcommands.Command.SetFlags. -func (c *uds) SetFlags(f *flag.FlagSet) { - f.StringVar(&c.fileName, "file", "", "name of output file") - f.StringVar(&c.socketPath, "socket", "", "path to socket") -} - -// Execute implements subcommands.Command.Execute. -func (c *uds) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - if c.fileName == "" || c.socketPath == "" { - log.Fatalf("Flags cannot be empty, given: fileName: %q, socketPath: %q", c.fileName, c.socketPath) - return subcommands.ExitFailure - } - outputFile, err := os.OpenFile(c.fileName, os.O_WRONLY|os.O_CREATE, 0666) - if err != nil { - log.Fatal("error opening output file:", err) - } - - defer os.Remove(c.socketPath) - - listener, err := net.Listen("unix", c.socketPath) - if err != nil { - log.Fatalf("error listening on socket %q: %v", c.socketPath, err) - } - - go server(listener, outputFile) - for i := 0; ; i++ { - conn, err := net.Dial("unix", c.socketPath) - if err != nil { - log.Fatal("error dialing:", err) - } - if _, err := conn.Write([]byte(strconv.Itoa(i))); err != nil { - log.Fatal("error writing:", err) - } - conn.Close() - time.Sleep(100 * time.Millisecond) - } -} - -func server(listener net.Listener, out *os.File) { - buf := make([]byte, 16) - - for { - c, err := listener.Accept() - if err != nil { - log.Fatal("error accepting connection:", err) - } - nr, err := c.Read(buf) - if err != nil { - log.Fatal("error reading from buf:", err) - } - data := buf[0:nr] - fmt.Fprint(out, string(data)+"\n") - } -} - -type taskTree struct { - depth int - width int - pause bool -} - -// Name implements subcommands.Command. -func (*taskTree) Name() string { - return "task-tree" -} - -// Synopsis implements subcommands.Command. -func (*taskTree) Synopsis() string { - return "creates a tree of tasks" -} - -// Usage implements subcommands.Command. -func (*taskTree) Usage() string { - return "task-tree <flags>" -} - -// SetFlags implements subcommands.Command. -func (c *taskTree) SetFlags(f *flag.FlagSet) { - f.IntVar(&c.depth, "depth", 1, "number of levels to create") - f.IntVar(&c.width, "width", 1, "number of tasks at each level") - f.BoolVar(&c.pause, "pause", false, "whether the tasks should pause perpetually") -} - -// Execute implements subcommands.Command. -func (c *taskTree) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - stop := testutil.StartReaper() - defer stop() - - if c.depth == 0 { - log.Printf("Child sleeping, PID: %d\n", os.Getpid()) - select {} - } - log.Printf("Parent %d sleeping, PID: %d\n", c.depth, os.Getpid()) - - var cmds []*exec.Cmd - for i := 0; i < c.width; i++ { - cmd := exec.Command( - "/proc/self/exe", c.Name(), - "--depth", strconv.Itoa(c.depth-1), - "--width", strconv.Itoa(c.width), - "--pause", strconv.FormatBool(c.pause)) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - - if err := cmd.Start(); err != nil { - log.Fatal("failed to call self:", err) - } - cmds = append(cmds, cmd) - } - - for _, c := range cmds { - c.Wait() - } - - if c.pause { - select {} - } - - return subcommands.ExitSuccess -} - -type forkBomb struct { - delay time.Duration -} - -// Name implements subcommands.Command. -func (*forkBomb) Name() string { - return "fork-bomb" -} - -// Synopsis implements subcommands.Command. -func (*forkBomb) Synopsis() string { - return "creates child process until the end of times" -} - -// Usage implements subcommands.Command. -func (*forkBomb) Usage() string { - return "fork-bomb <flags>" -} - -// SetFlags implements subcommands.Command. -func (c *forkBomb) SetFlags(f *flag.FlagSet) { - f.DurationVar(&c.delay, "delay", 100*time.Millisecond, "amount of time to delay creation of child") -} - -// Execute implements subcommands.Command. -func (c *forkBomb) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - time.Sleep(c.delay) - - cmd := exec.Command("/proc/self/exe", c.Name()) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - if err := cmd.Run(); err != nil { - log.Fatal("failed to call self:", err) - } - return subcommands.ExitSuccess -} - -type reaper struct{} - -// Name implements subcommands.Command. -func (*reaper) Name() string { - return "reaper" -} - -// Synopsis implements subcommands.Command. -func (*reaper) Synopsis() string { - return "reaps all children in a loop" -} - -// Usage implements subcommands.Command. -func (*reaper) Usage() string { - return "reaper <flags>" -} - -// SetFlags implements subcommands.Command. -func (*reaper) SetFlags(*flag.FlagSet) {} - -// Execute implements subcommands.Command. -func (c *reaper) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - stop := testutil.StartReaper() - defer stop() - select {} -} - -type syscall struct { - sysno uint64 -} - -// Name implements subcommands.Command. -func (*syscall) Name() string { - return "syscall" -} - -// Synopsis implements subcommands.Command. -func (*syscall) Synopsis() string { - return "syscall makes a syscall" -} - -// Usage implements subcommands.Command. -func (*syscall) Usage() string { - return "syscall <flags>" -} - -// SetFlags implements subcommands.Command. -func (s *syscall) SetFlags(f *flag.FlagSet) { - f.Uint64Var(&s.sysno, "syscall", 0, "syscall to call") -} - -// Execute implements subcommands.Command. -func (s *syscall) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - if _, _, errno := sys.Syscall(uintptr(s.sysno), 0, 0, 0); errno != 0 { - fmt.Printf("syscall(%d, 0, 0...) failed: %v\n", s.sysno, errno) - } else { - fmt.Printf("syscall(%d, 0, 0...) success\n", s.sysno) - } - return subcommands.ExitSuccess -} - -type capability struct { - enabled uint64 - disabled uint64 -} - -// Name implements subcommands.Command. -func (*capability) Name() string { - return "capability" -} - -// Synopsis implements subcommands.Command. -func (*capability) Synopsis() string { - return "checks if effective capabilities are set/unset" -} - -// Usage implements subcommands.Command. -func (*capability) Usage() string { - return "capability [--enabled=number] [--disabled=number]" -} - -// SetFlags implements subcommands.Command. -func (c *capability) SetFlags(f *flag.FlagSet) { - f.Uint64Var(&c.enabled, "enabled", 0, "") - f.Uint64Var(&c.disabled, "disabled", 0, "") -} - -// Execute implements subcommands.Command. -func (c *capability) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus { - if c.enabled == 0 && c.disabled == 0 { - fmt.Println("One of the flags must be set") - return subcommands.ExitUsageError - } - - status, err := ioutil.ReadFile("/proc/self/status") - if err != nil { - fmt.Printf("Error reading %q: %v\n", "proc/self/status", err) - return subcommands.ExitFailure - } - re := regexp.MustCompile("CapEff:\t([0-9a-f]+)\n") - matches := re.FindStringSubmatch(string(status)) - if matches == nil || len(matches) != 2 { - fmt.Printf("Effective capabilities not found in\n%s\n", status) - return subcommands.ExitFailure - } - caps, err := strconv.ParseUint(matches[1], 16, 64) - if err != nil { - fmt.Printf("failed to convert capabilities %q: %v\n", matches[1], err) - return subcommands.ExitFailure - } - - if c.enabled != 0 && (caps&c.enabled) != c.enabled { - fmt.Printf("Missing capabilities, want: %#x: got: %#x\n", c.enabled, caps) - return subcommands.ExitFailure - } - if c.disabled != 0 && (caps&c.disabled) != 0 { - fmt.Printf("Extra capabilities found, dont_want: %#x: got: %#x\n", c.disabled, caps) - return subcommands.ExitFailure - } - - return subcommands.ExitSuccess -} - -type ptyRunner struct{} - -// Name implements subcommands.Command. -func (*ptyRunner) Name() string { - return "pty-runner" -} - -// Synopsis implements subcommands.Command. -func (*ptyRunner) Synopsis() string { - return "runs the given command with an open pty terminal" -} - -// Usage implements subcommands.Command. -func (*ptyRunner) Usage() string { - return "pty-runner [command]" -} - -// SetFlags implements subcommands.Command.SetFlags. -func (*ptyRunner) SetFlags(f *flag.FlagSet) {} - -// Execute implements subcommands.Command. -func (*ptyRunner) Execute(_ context.Context, fs *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus { - c := exec.Command(fs.Args()[0], fs.Args()[1:]...) - f, err := pty.Start(c) - if err != nil { - fmt.Printf("pty.Start failed: %v", err) - return subcommands.ExitFailure - } - defer f.Close() - - // Copy stdout from the command to keep this process alive until the - // subprocess exits. - io.Copy(os.Stdout, f) - - return subcommands.ExitSuccess -} diff --git a/runsc/criutil/BUILD b/runsc/criutil/BUILD deleted file mode 100644 index 8a571a000..000000000 --- a/runsc/criutil/BUILD +++ /dev/null @@ -1,11 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "criutil", - testonly = 1, - srcs = ["criutil.go"], - visibility = ["//:sandbox"], - deps = ["//runsc/testutil"], -) diff --git a/runsc/criutil/criutil.go b/runsc/criutil/criutil.go deleted file mode 100644 index 773f5a1c4..000000000 --- a/runsc/criutil/criutil.go +++ /dev/null @@ -1,277 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package criutil contains utility functions for interacting with the -// Container Runtime Interface (CRI), principally via the crictl command line -// tool. This requires critools to be installed on the local system. -package criutil - -import ( - "encoding/json" - "fmt" - "os" - "os/exec" - "strings" - "time" - - "gvisor.dev/gvisor/runsc/testutil" -) - -const endpointPrefix = "unix://" - -// Crictl contains information required to run the crictl utility. -type Crictl struct { - executable string - timeout time.Duration - imageEndpoint string - runtimeEndpoint string -} - -// NewCrictl returns a Crictl configured with a timeout and an endpoint over -// which it will talk to containerd. -func NewCrictl(timeout time.Duration, endpoint string) *Crictl { - // Bazel doesn't pass PATH through, assume the location of crictl - // unless specified by environment variable. - executable := os.Getenv("CRICTL_PATH") - if executable == "" { - executable = "/usr/local/bin/crictl" - } - return &Crictl{ - executable: executable, - timeout: timeout, - imageEndpoint: endpointPrefix + endpoint, - runtimeEndpoint: endpointPrefix + endpoint, - } -} - -// Pull pulls an container image. It corresponds to `crictl pull`. -func (cc *Crictl) Pull(imageName string) error { - _, err := cc.run("pull", imageName) - return err -} - -// RunPod creates a sandbox. It corresponds to `crictl runp`. -func (cc *Crictl) RunPod(sbSpecFile string) (string, error) { - podID, err := cc.run("runp", sbSpecFile) - if err != nil { - return "", fmt.Errorf("runp failed: %v", err) - } - // Strip the trailing newline from crictl output. - return strings.TrimSpace(podID), nil -} - -// Create creates a container within a sandbox. It corresponds to `crictl -// create`. -func (cc *Crictl) Create(podID, contSpecFile, sbSpecFile string) (string, error) { - podID, err := cc.run("create", podID, contSpecFile, sbSpecFile) - if err != nil { - return "", fmt.Errorf("create failed: %v", err) - } - // Strip the trailing newline from crictl output. - return strings.TrimSpace(podID), nil -} - -// Start starts a container. It corresponds to `crictl start`. -func (cc *Crictl) Start(contID string) (string, error) { - output, err := cc.run("start", contID) - if err != nil { - return "", fmt.Errorf("start failed: %v", err) - } - return output, nil -} - -// Stop stops a container. It corresponds to `crictl stop`. -func (cc *Crictl) Stop(contID string) error { - _, err := cc.run("stop", contID) - return err -} - -// Exec execs a program inside a container. It corresponds to `crictl exec`. -func (cc *Crictl) Exec(contID string, args ...string) (string, error) { - a := []string{"exec", contID} - a = append(a, args...) - output, err := cc.run(a...) - if err != nil { - return "", fmt.Errorf("exec failed: %v", err) - } - return output, nil -} - -// Rm removes a container. It corresponds to `crictl rm`. -func (cc *Crictl) Rm(contID string) error { - _, err := cc.run("rm", contID) - return err -} - -// StopPod stops a pod. It corresponds to `crictl stopp`. -func (cc *Crictl) StopPod(podID string) error { - _, err := cc.run("stopp", podID) - return err -} - -// containsConfig is a minimal copy of -// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto -// It only contains fields needed for testing. -type containerConfig struct { - Status containerStatus -} - -type containerStatus struct { - Network containerNetwork -} - -type containerNetwork struct { - IP string -} - -// PodIP returns a pod's IP address. -func (cc *Crictl) PodIP(podID string) (string, error) { - output, err := cc.run("inspectp", podID) - if err != nil { - return "", err - } - conf := &containerConfig{} - if err := json.Unmarshal([]byte(output), conf); err != nil { - return "", fmt.Errorf("failed to unmarshal JSON: %v, %s", err, output) - } - if conf.Status.Network.IP == "" { - return "", fmt.Errorf("no IP found in config: %s", output) - } - return conf.Status.Network.IP, nil -} - -// RmPod removes a container. It corresponds to `crictl rmp`. -func (cc *Crictl) RmPod(podID string) error { - _, err := cc.run("rmp", podID) - return err -} - -// StartContainer pulls the given image ands starts the container in the -// sandbox with the given podID. -func (cc *Crictl) StartContainer(podID, image, sbSpec, contSpec string) (string, error) { - // Write the specs to files that can be read by crictl. - sbSpecFile, err := testutil.WriteTmpFile("sbSpec", sbSpec) - if err != nil { - return "", fmt.Errorf("failed to write sandbox spec: %v", err) - } - contSpecFile, err := testutil.WriteTmpFile("contSpec", contSpec) - if err != nil { - return "", fmt.Errorf("failed to write container spec: %v", err) - } - - return cc.startContainer(podID, image, sbSpecFile, contSpecFile) -} - -func (cc *Crictl) startContainer(podID, image, sbSpecFile, contSpecFile string) (string, error) { - if err := cc.Pull(image); err != nil { - return "", fmt.Errorf("failed to pull %s: %v", image, err) - } - - contID, err := cc.Create(podID, contSpecFile, sbSpecFile) - if err != nil { - return "", fmt.Errorf("failed to create container in pod %q: %v", podID, err) - } - - if _, err := cc.Start(contID); err != nil { - return "", fmt.Errorf("failed to start container %q in pod %q: %v", contID, podID, err) - } - - return contID, nil -} - -// StopContainer stops and deletes the container with the given container ID. -func (cc *Crictl) StopContainer(contID string) error { - if err := cc.Stop(contID); err != nil { - return fmt.Errorf("failed to stop container %q: %v", contID, err) - } - - if err := cc.Rm(contID); err != nil { - return fmt.Errorf("failed to remove container %q: %v", contID, err) - } - - return nil -} - -// StartPodAndContainer pulls an image, then starts a sandbox and container in -// that sandbox. It returns the pod ID and container ID. -func (cc *Crictl) StartPodAndContainer(image, sbSpec, contSpec string) (string, string, error) { - // Write the specs to files that can be read by crictl. - sbSpecFile, err := testutil.WriteTmpFile("sbSpec", sbSpec) - if err != nil { - return "", "", fmt.Errorf("failed to write sandbox spec: %v", err) - } - contSpecFile, err := testutil.WriteTmpFile("contSpec", contSpec) - if err != nil { - return "", "", fmt.Errorf("failed to write container spec: %v", err) - } - - podID, err := cc.RunPod(sbSpecFile) - if err != nil { - return "", "", err - } - - contID, err := cc.startContainer(podID, image, sbSpecFile, contSpecFile) - - return podID, contID, err -} - -// StopPodAndContainer stops a container and pod. -func (cc *Crictl) StopPodAndContainer(podID, contID string) error { - if err := cc.StopContainer(contID); err != nil { - return fmt.Errorf("failed to stop container %q in pod %q: %v", contID, podID, err) - } - - if err := cc.StopPod(podID); err != nil { - return fmt.Errorf("failed to stop pod %q: %v", podID, err) - } - - if err := cc.RmPod(podID); err != nil { - return fmt.Errorf("failed to remove pod %q: %v", podID, err) - } - - return nil -} - -// run runs crictl with the given args and returns an error if it takes longer -// than cc.Timeout to run. -func (cc *Crictl) run(args ...string) (string, error) { - defaultArgs := []string{ - "--image-endpoint", cc.imageEndpoint, - "--runtime-endpoint", cc.runtimeEndpoint, - } - cmd := exec.Command(cc.executable, append(defaultArgs, args...)...) - - // Run the command with a timeout. - done := make(chan string) - errCh := make(chan error) - go func() { - output, err := cmd.CombinedOutput() - if err != nil { - errCh <- fmt.Errorf("error: \"%v\", output: %s", err, string(output)) - return - } - done <- string(output) - }() - select { - case output := <-done: - return output, nil - case err := <-errCh: - return "", err - case <-time.After(cc.timeout): - if err := testutil.KillCommand(cmd); err != nil { - return "", fmt.Errorf("timed out, then couldn't kill process %+v: %v", cmd, err) - } - return "", fmt.Errorf("timed out: %+v", cmd) - } -} diff --git a/runsc/dockerutil/BUILD b/runsc/dockerutil/BUILD deleted file mode 100644 index 8621af901..000000000 --- a/runsc/dockerutil/BUILD +++ /dev/null @@ -1,14 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "dockerutil", - testonly = 1, - srcs = ["dockerutil.go"], - visibility = ["//:sandbox"], - deps = [ - "//runsc/testutil", - "@com_github_kr_pty//:go_default_library", - ], -) diff --git a/runsc/dockerutil/dockerutil.go b/runsc/dockerutil/dockerutil.go deleted file mode 100644 index f009486bc..000000000 --- a/runsc/dockerutil/dockerutil.go +++ /dev/null @@ -1,486 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package dockerutil is a collection of utility functions, primarily for -// testing. -package dockerutil - -import ( - "encoding/json" - "flag" - "fmt" - "io/ioutil" - "log" - "os" - "os/exec" - "path" - "regexp" - "strconv" - "strings" - "syscall" - "time" - - "github.com/kr/pty" - "gvisor.dev/gvisor/runsc/testutil" -) - -var ( - // runtime is the runtime to use for tests. This will be applied to all - // containers. Note that the default here ("runsc") corresponds to the - // default used by the installations. This is important, because the - // default installer for vm_tests (in tools/installers:head, invoked - // via tools/vm:defs.bzl) will install with this name. So without - // changing anything, tests should have a runsc runtime available to - // them. Otherwise installers should update the existing runtime - // instead of installing a new one. - runtime = flag.String("runtime", "runsc", "specify which runtime to use") - - // config is the default Docker daemon configuration path. - config = flag.String("config_path", "/etc/docker/daemon.json", "configuration file for reading paths") -) - -// EnsureSupportedDockerVersion checks if correct docker is installed. -func EnsureSupportedDockerVersion() { - cmd := exec.Command("docker", "version") - out, err := cmd.CombinedOutput() - if err != nil { - log.Fatalf("Error running %q: %v", "docker version", err) - } - re := regexp.MustCompile(`Version:\s+(\d+)\.(\d+)\.\d.*`) - matches := re.FindStringSubmatch(string(out)) - if len(matches) != 3 { - log.Fatalf("Invalid docker output: %s", out) - } - major, _ := strconv.Atoi(matches[1]) - minor, _ := strconv.Atoi(matches[2]) - if major < 17 || (major == 17 && minor < 9) { - log.Fatalf("Docker version 17.09.0 or greater is required, found: %02d.%02d", major, minor) - } -} - -// RuntimePath returns the binary path for the current runtime. -func RuntimePath() (string, error) { - // Read the configuration data; the file must exist. - configBytes, err := ioutil.ReadFile(*config) - if err != nil { - return "", err - } - - // Unmarshal the configuration. - c := make(map[string]interface{}) - if err := json.Unmarshal(configBytes, &c); err != nil { - return "", err - } - - // Decode the expected configuration. - r, ok := c["runtimes"] - if !ok { - return "", fmt.Errorf("no runtimes declared: %v", c) - } - rs, ok := r.(map[string]interface{}) - if !ok { - // The runtimes are not a map. - return "", fmt.Errorf("unexpected format: %v", c) - } - r, ok = rs[*runtime] - if !ok { - // The expected runtime is not declared. - return "", fmt.Errorf("runtime %q not found: %v", *runtime, c) - } - rs, ok = r.(map[string]interface{}) - if !ok { - // The runtime is not a map. - return "", fmt.Errorf("unexpected format: %v", c) - } - p, ok := rs["path"].(string) - if !ok { - // The runtime does not declare a path. - return "", fmt.Errorf("unexpected format: %v", c) - } - return p, nil -} - -// MountMode describes if the mount should be ro or rw. -type MountMode int - -const ( - // ReadOnly is what the name says. - ReadOnly MountMode = iota - // ReadWrite is what the name says. - ReadWrite -) - -// String returns the mount mode argument for this MountMode. -func (m MountMode) String() string { - switch m { - case ReadOnly: - return "ro" - case ReadWrite: - return "rw" - } - panic(fmt.Sprintf("invalid mode: %d", m)) -} - -// MountArg formats the volume argument to mount in the container. -func MountArg(source, target string, mode MountMode) string { - return fmt.Sprintf("-v=%s:%s:%v", source, target, mode) -} - -// LinkArg formats the link argument. -func LinkArg(source *Docker, target string) string { - return fmt.Sprintf("--link=%s:%s", source.Name, target) -} - -// PrepareFiles creates temp directory to copy files there. The sandbox doesn't -// have access to files in the test dir. -func PrepareFiles(names ...string) (string, error) { - dir, err := ioutil.TempDir("", "image-test") - if err != nil { - return "", fmt.Errorf("ioutil.TempDir failed: %v", err) - } - if err := os.Chmod(dir, 0777); err != nil { - return "", fmt.Errorf("os.Chmod(%q, 0777) failed: %v", dir, err) - } - for _, name := range names { - src, err := testutil.FindFile(name) - if err != nil { - return "", fmt.Errorf("testutil.Preparefiles(%q) failed: %v", name, err) - } - dst := path.Join(dir, path.Base(name)) - if err := testutil.Copy(src, dst); err != nil { - return "", fmt.Errorf("testutil.Copy(%q, %q) failed: %v", src, dst, err) - } - } - return dir, nil -} - -// do executes docker command. -func do(args ...string) (string, error) { - log.Printf("Running: docker %s\n", args) - cmd := exec.Command("docker", args...) - out, err := cmd.CombinedOutput() - if err != nil { - return "", fmt.Errorf("error executing docker %s: %v\nout: %s", args, err, out) - } - return string(out), nil -} - -// doWithPty executes docker command with stdio attached to a pty. -func doWithPty(args ...string) (*exec.Cmd, *os.File, error) { - log.Printf("Running with pty: docker %s\n", args) - cmd := exec.Command("docker", args...) - ptmx, err := pty.Start(cmd) - if err != nil { - return nil, nil, fmt.Errorf("error executing docker %s with a pty: %v", args, err) - } - return cmd, ptmx, nil -} - -// Pull pulls a docker image. This is used in tests to isolate the -// time to pull the image off the network from the time to actually -// start the container, to avoid timeouts over slow networks. -func Pull(image string) error { - _, err := do("pull", image) - return err -} - -// Docker contains the name and the runtime of a docker container. -type Docker struct { - Runtime string - Name string -} - -// MakeDocker sets up the struct for a Docker container. -// Names of containers will be unique. -func MakeDocker(namePrefix string) Docker { - return Docker{ - Name: testutil.RandomName(namePrefix), - Runtime: *runtime, - } -} - -// logDockerID logs a container id, which is needed to find container runsc logs. -func (d *Docker) logDockerID() { - id, err := d.ID() - if err != nil { - log.Printf("%v\n", err) - } - log.Printf("Name: %s ID: %v\n", d.Name, id) -} - -// Create calls 'docker create' with the arguments provided. -func (d *Docker) Create(args ...string) error { - a := []string{"create", "--runtime", d.Runtime, "--name", d.Name} - a = append(a, args...) - _, err := do(a...) - if err == nil { - d.logDockerID() - } - return err -} - -// Start calls 'docker start'. -func (d *Docker) Start() error { - if _, err := do("start", d.Name); err != nil { - return fmt.Errorf("error starting container %q: %v", d.Name, err) - } - return nil -} - -// Stop calls 'docker stop'. -func (d *Docker) Stop() error { - if _, err := do("stop", d.Name); err != nil { - return fmt.Errorf("error stopping container %q: %v", d.Name, err) - } - return nil -} - -// Run calls 'docker run' with the arguments provided. The container starts -// running in the background and the call returns immediately. -func (d *Docker) Run(args ...string) error { - a := d.runArgs("-d") - a = append(a, args...) - _, err := do(a...) - if err == nil { - d.logDockerID() - } - return err -} - -// RunWithPty is like Run but with an attached pty. -func (d *Docker) RunWithPty(args ...string) (*exec.Cmd, *os.File, error) { - a := d.runArgs("-it") - a = append(a, args...) - return doWithPty(a...) -} - -// RunFg calls 'docker run' with the arguments provided in the foreground. It -// blocks until the container exits and returns the output. -func (d *Docker) RunFg(args ...string) (string, error) { - a := d.runArgs(args...) - out, err := do(a...) - if err == nil { - d.logDockerID() - } - return string(out), err -} - -func (d *Docker) runArgs(args ...string) []string { - // Environment variable RUNSC_TEST_NAME is picked up by the runtime and added - // to the log name, so one can easily identify the corresponding logs for - // this test. - rv := []string{"run", "--runtime", d.Runtime, "--name", d.Name, "-e", "RUNSC_TEST_NAME=" + d.Name} - return append(rv, args...) -} - -// Logs calls 'docker logs'. -func (d *Docker) Logs() (string, error) { - return do("logs", d.Name) -} - -// Exec calls 'docker exec' with the arguments provided. -func (d *Docker) Exec(args ...string) (string, error) { - return d.ExecWithFlags(nil, args...) -} - -// ExecWithFlags calls 'docker exec <flags> name <args>'. -func (d *Docker) ExecWithFlags(flags []string, args ...string) (string, error) { - a := []string{"exec"} - a = append(a, flags...) - a = append(a, d.Name) - a = append(a, args...) - return do(a...) -} - -// ExecAsUser calls 'docker exec' as the given user with the arguments -// provided. -func (d *Docker) ExecAsUser(user string, args ...string) (string, error) { - a := []string{"exec", "--user", user, d.Name} - a = append(a, args...) - return do(a...) -} - -// ExecWithTerminal calls 'docker exec -it' with the arguments provided and -// attaches a pty to stdio. -func (d *Docker) ExecWithTerminal(args ...string) (*exec.Cmd, *os.File, error) { - a := []string{"exec", "-it", d.Name} - a = append(a, args...) - return doWithPty(a...) -} - -// Pause calls 'docker pause'. -func (d *Docker) Pause() error { - if _, err := do("pause", d.Name); err != nil { - return fmt.Errorf("error pausing container %q: %v", d.Name, err) - } - return nil -} - -// Unpause calls 'docker pause'. -func (d *Docker) Unpause() error { - if _, err := do("unpause", d.Name); err != nil { - return fmt.Errorf("error unpausing container %q: %v", d.Name, err) - } - return nil -} - -// Checkpoint calls 'docker checkpoint'. -func (d *Docker) Checkpoint(name string) error { - if _, err := do("checkpoint", "create", d.Name, name); err != nil { - return fmt.Errorf("error pausing container %q: %v", d.Name, err) - } - return nil -} - -// Restore calls 'docker start --checkname [name]'. -func (d *Docker) Restore(name string) error { - if _, err := do("start", "--checkpoint", name, d.Name); err != nil { - return fmt.Errorf("error starting container %q: %v", d.Name, err) - } - return nil -} - -// Remove calls 'docker rm'. -func (d *Docker) Remove() error { - if _, err := do("rm", d.Name); err != nil { - return fmt.Errorf("error deleting container %q: %v", d.Name, err) - } - return nil -} - -// CleanUp kills and deletes the container (best effort). -func (d *Docker) CleanUp() { - d.logDockerID() - if _, err := do("kill", d.Name); err != nil { - if strings.Contains(err.Error(), "is not running") { - // Nothing to kill. Don't log the error in this case. - } else { - log.Printf("error killing container %q: %v", d.Name, err) - } - } - if err := d.Remove(); err != nil { - log.Print(err) - } -} - -// FindPort returns the host port that is mapped to 'sandboxPort'. This calls -// docker to allocate a free port in the host and prevent conflicts. -func (d *Docker) FindPort(sandboxPort int) (int, error) { - format := fmt.Sprintf(`{{ (index (index .NetworkSettings.Ports "%d/tcp") 0).HostPort }}`, sandboxPort) - out, err := do("inspect", "-f", format, d.Name) - if err != nil { - return -1, fmt.Errorf("error retrieving port: %v", err) - } - port, err := strconv.Atoi(strings.TrimSuffix(string(out), "\n")) - if err != nil { - return -1, fmt.Errorf("error parsing port %q: %v", out, err) - } - return port, nil -} - -// FindIP returns the IP address of the container as a string. -func (d *Docker) FindIP() (string, error) { - const format = `{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}` - out, err := do("inspect", "-f", format, d.Name) - if err != nil { - return "", fmt.Errorf("error retrieving IP: %v", err) - } - return strings.TrimSpace(out), nil -} - -// SandboxPid returns the PID to the sandbox process. -func (d *Docker) SandboxPid() (int, error) { - out, err := do("inspect", "-f={{.State.Pid}}", d.Name) - if err != nil { - return -1, fmt.Errorf("error retrieving pid: %v", err) - } - pid, err := strconv.Atoi(strings.TrimSuffix(string(out), "\n")) - if err != nil { - return -1, fmt.Errorf("error parsing pid %q: %v", out, err) - } - return pid, nil -} - -// ID returns the container ID. -func (d *Docker) ID() (string, error) { - out, err := do("inspect", "-f={{.Id}}", d.Name) - if err != nil { - return "", fmt.Errorf("error retrieving ID: %v", err) - } - return strings.TrimSpace(string(out)), nil -} - -// Wait waits for container to exit, up to the given timeout. Returns error if -// wait fails or timeout is hit. Returns the application return code otherwise. -// Note that the application may have failed even if err == nil, always check -// the exit code. -func (d *Docker) Wait(timeout time.Duration) (syscall.WaitStatus, error) { - timeoutChan := time.After(timeout) - waitChan := make(chan (syscall.WaitStatus)) - errChan := make(chan (error)) - - go func() { - out, err := do("wait", d.Name) - if err != nil { - errChan <- fmt.Errorf("error waiting for container %q: %v", d.Name, err) - } - exit, err := strconv.Atoi(strings.TrimSuffix(string(out), "\n")) - if err != nil { - errChan <- fmt.Errorf("error parsing exit code %q: %v", out, err) - } - waitChan <- syscall.WaitStatus(uint32(exit)) - }() - - select { - case ws := <-waitChan: - return ws, nil - case err := <-errChan: - return syscall.WaitStatus(1), err - case <-timeoutChan: - return syscall.WaitStatus(1), fmt.Errorf("timeout waiting for container %q", d.Name) - } -} - -// WaitForOutput calls 'docker logs' to retrieve containers output and searches -// for the given pattern. -func (d *Docker) WaitForOutput(pattern string, timeout time.Duration) (string, error) { - matches, err := d.WaitForOutputSubmatch(pattern, timeout) - if err != nil { - return "", err - } - if len(matches) == 0 { - return "", nil - } - return matches[0], nil -} - -// WaitForOutputSubmatch calls 'docker logs' to retrieve containers output and -// searches for the given pattern. It returns any regexp submatches as well. -func (d *Docker) WaitForOutputSubmatch(pattern string, timeout time.Duration) ([]string, error) { - re := regexp.MustCompile(pattern) - var out string - for exp := time.Now().Add(timeout); time.Now().Before(exp); { - var err error - out, err = d.Logs() - if err != nil { - return nil, err - } - if matches := re.FindStringSubmatch(out); matches != nil { - // Success! - return matches, nil - } - time.Sleep(100 * time.Millisecond) - } - return nil, fmt.Errorf("timeout waiting for output %q: %s", re.String(), out) -} diff --git a/runsc/testutil/BUILD b/runsc/testutil/BUILD deleted file mode 100644 index 945405303..000000000 --- a/runsc/testutil/BUILD +++ /dev/null @@ -1,21 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "testutil", - testonly = 1, - srcs = [ - "testutil.go", - "testutil_runfiles.go", - ], - visibility = ["//:sandbox"], - deps = [ - "//pkg/log", - "//pkg/sync", - "//runsc/boot", - "//runsc/specutils", - "@com_github_cenkalti_backoff//:go_default_library", - "@com_github_opencontainers_runtime-spec//specs-go:go_default_library", - ], -) diff --git a/runsc/testutil/testutil.go b/runsc/testutil/testutil.go deleted file mode 100644 index 5e09f8f16..000000000 --- a/runsc/testutil/testutil.go +++ /dev/null @@ -1,433 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package testutil contains utility functions for runsc tests. -package testutil - -import ( - "bufio" - "context" - "debug/elf" - "encoding/base32" - "encoding/json" - "flag" - "fmt" - "io" - "io/ioutil" - "math" - "math/rand" - "net/http" - "os" - "os/exec" - "os/signal" - "path" - "path/filepath" - "strconv" - "strings" - "sync/atomic" - "syscall" - "testing" - "time" - - "github.com/cenkalti/backoff" - specs "github.com/opencontainers/runtime-spec/specs-go" - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/runsc/boot" - "gvisor.dev/gvisor/runsc/specutils" -) - -var ( - checkpoint = flag.Bool("checkpoint", true, "control checkpoint/restore support") -) - -func init() { - rand.Seed(time.Now().UnixNano()) -} - -// IsCheckpointSupported returns the relevant command line flag. -func IsCheckpointSupported() bool { - return *checkpoint -} - -// TmpDir returns the absolute path to a writable directory that can be used as -// scratch by the test. -func TmpDir() string { - dir := os.Getenv("TEST_TMPDIR") - if dir == "" { - dir = "/tmp" - } - return dir -} - -// ConfigureExePath configures the executable for runsc in the test environment. -func ConfigureExePath() error { - path, err := FindFile("runsc/runsc") - if err != nil { - return err - } - specutils.ExePath = path - return nil -} - -// TestConfig returns the default configuration to use in tests. Note that -// 'RootDir' must be set by caller if required. -func TestConfig(t *testing.T) *boot.Config { - logDir := "" - if dir, ok := os.LookupEnv("TEST_UNDECLARED_OUTPUTS_DIR"); ok { - logDir = dir + "/" - } - return &boot.Config{ - Debug: true, - DebugLog: path.Join(logDir, "runsc.log."+t.Name()+".%TIMESTAMP%.%COMMAND%"), - LogFormat: "text", - DebugLogFormat: "text", - LogPackets: true, - Network: boot.NetworkNone, - Strace: true, - Platform: "ptrace", - FileAccess: boot.FileAccessExclusive, - NumNetworkChannels: 1, - - TestOnlyAllowRunAsCurrentUserWithoutChroot: true, - } -} - -// NewSpecWithArgs creates a simple spec with the given args suitable for use -// in tests. -func NewSpecWithArgs(args ...string) *specs.Spec { - return &specs.Spec{ - // The host filesystem root is the container root. - Root: &specs.Root{ - Path: "/", - Readonly: true, - }, - Process: &specs.Process{ - Args: args, - Env: []string{ - "PATH=" + os.Getenv("PATH"), - }, - Capabilities: specutils.AllCapabilities(), - }, - Mounts: []specs.Mount{ - // Hide the host /etc to avoid any side-effects. - // For example, bash reads /etc/passwd and if it is - // very big, tests can fail by timeout. - { - Type: "tmpfs", - Destination: "/etc", - }, - // Root is readonly, but many tests want to write to tmpdir. - // This creates a writable mount inside the root. Also, when tmpdir points - // to "/tmp", it makes the the actual /tmp to be mounted and not a tmpfs - // inside the sentry. - { - Type: "bind", - Destination: TmpDir(), - Source: TmpDir(), - }, - }, - Hostname: "runsc-test-hostname", - } -} - -// SetupRootDir creates a root directory for containers. -func SetupRootDir() (string, error) { - rootDir, err := ioutil.TempDir(TmpDir(), "containers") - if err != nil { - return "", fmt.Errorf("error creating root dir: %v", err) - } - return rootDir, nil -} - -// SetupContainer creates a bundle and root dir for the container, generates a -// test config, and writes the spec to config.json in the bundle dir. -func SetupContainer(spec *specs.Spec, conf *boot.Config) (rootDir, bundleDir string, err error) { - rootDir, err = SetupRootDir() - if err != nil { - return "", "", err - } - conf.RootDir = rootDir - bundleDir, err = SetupBundleDir(spec) - return rootDir, bundleDir, err -} - -// SetupBundleDir creates a bundle dir and writes the spec to config.json. -func SetupBundleDir(spec *specs.Spec) (bundleDir string, err error) { - bundleDir, err = ioutil.TempDir(TmpDir(), "bundle") - if err != nil { - return "", fmt.Errorf("error creating bundle dir: %v", err) - } - - if err = writeSpec(bundleDir, spec); err != nil { - return "", fmt.Errorf("error writing spec: %v", err) - } - return bundleDir, nil -} - -// writeSpec writes the spec to disk in the given directory. -func writeSpec(dir string, spec *specs.Spec) error { - b, err := json.Marshal(spec) - if err != nil { - return err - } - return ioutil.WriteFile(filepath.Join(dir, "config.json"), b, 0755) -} - -// UniqueContainerID generates a unique container id for each test. -// -// The container id is used to create an abstract unix domain socket, which must -// be unique. While the container forbids creating two containers with the same -// name, sometimes between test runs the socket does not get cleaned up quickly -// enough, causing container creation to fail. -func UniqueContainerID() string { - // Read 20 random bytes. - b := make([]byte, 20) - // "[Read] always returns len(p) and a nil error." --godoc - if _, err := rand.Read(b); err != nil { - panic("rand.Read failed: " + err.Error()) - } - // base32 encode the random bytes, so that the name is a valid - // container id and can be used as a socket name in the filesystem. - return fmt.Sprintf("test-container-%s", base32.StdEncoding.EncodeToString(b)) -} - -// Copy copies file from src to dst. -func Copy(src, dst string) error { - in, err := os.Open(src) - if err != nil { - return err - } - defer in.Close() - - out, err := os.Create(dst) - if err != nil { - return err - } - defer out.Close() - - _, err = io.Copy(out, in) - return err -} - -// Poll is a shorthand function to poll for something with given timeout. -func Poll(cb func() error, timeout time.Duration) error { - ctx, cancel := context.WithTimeout(context.Background(), timeout) - defer cancel() - b := backoff.WithContext(backoff.NewConstantBackOff(100*time.Millisecond), ctx) - return backoff.Retry(cb, b) -} - -// WaitForHTTP tries GET requests on a port until the call succeeds or timeout. -func WaitForHTTP(port int, timeout time.Duration) error { - cb := func() error { - c := &http.Client{ - // Calculate timeout to be able to do minimum 5 attempts. - Timeout: timeout / 5, - } - url := fmt.Sprintf("http://localhost:%d/", port) - resp, err := c.Get(url) - if err != nil { - log.Infof("Waiting %s: %v", url, err) - return err - } - resp.Body.Close() - return nil - } - return Poll(cb, timeout) -} - -// Reaper reaps child processes. -type Reaper struct { - // mu protects ch, which will be nil if the reaper is not running. - mu sync.Mutex - ch chan os.Signal -} - -// Start starts reaping child processes. -func (r *Reaper) Start() { - r.mu.Lock() - defer r.mu.Unlock() - - if r.ch != nil { - panic("reaper.Start called on a running reaper") - } - - r.ch = make(chan os.Signal, 1) - signal.Notify(r.ch, syscall.SIGCHLD) - - go func() { - for { - r.mu.Lock() - ch := r.ch - r.mu.Unlock() - if ch == nil { - return - } - - _, ok := <-ch - if !ok { - // Channel closed. - return - } - for { - cpid, _ := syscall.Wait4(-1, nil, syscall.WNOHANG, nil) - if cpid < 1 { - break - } - } - } - }() -} - -// Stop stops reaping child processes. -func (r *Reaper) Stop() { - r.mu.Lock() - defer r.mu.Unlock() - - if r.ch == nil { - panic("reaper.Stop called on a stopped reaper") - } - - signal.Stop(r.ch) - close(r.ch) - r.ch = nil -} - -// StartReaper is a helper that starts a new Reaper and returns a function to -// stop it. -func StartReaper() func() { - r := &Reaper{} - r.Start() - return r.Stop -} - -// WaitUntilRead reads from the given reader until the wanted string is found -// or until timeout. -func WaitUntilRead(r io.Reader, want string, split bufio.SplitFunc, timeout time.Duration) error { - sc := bufio.NewScanner(r) - if split != nil { - sc.Split(split) - } - // done must be accessed atomically. A value greater than 0 indicates - // that the read loop can exit. - var done uint32 - doneCh := make(chan struct{}) - go func() { - for sc.Scan() { - t := sc.Text() - if strings.Contains(t, want) { - atomic.StoreUint32(&done, 1) - close(doneCh) - break - } - if atomic.LoadUint32(&done) > 0 { - break - } - } - }() - select { - case <-time.After(timeout): - atomic.StoreUint32(&done, 1) - return fmt.Errorf("timeout waiting to read %q", want) - case <-doneCh: - return nil - } -} - -// KillCommand kills the process running cmd unless it hasn't been started. It -// returns an error if it cannot kill the process unless the reason is that the -// process has already exited. -func KillCommand(cmd *exec.Cmd) error { - if cmd.Process == nil { - return nil - } - if err := cmd.Process.Kill(); err != nil { - if !strings.Contains(err.Error(), "process already finished") { - return fmt.Errorf("failed to kill process %v: %v", cmd, err) - } - } - return nil -} - -// WriteTmpFile writes text to a temporary file, closes the file, and returns -// the name of the file. -func WriteTmpFile(pattern, text string) (string, error) { - file, err := ioutil.TempFile(TmpDir(), pattern) - if err != nil { - return "", err - } - defer file.Close() - if _, err := file.Write([]byte(text)); err != nil { - return "", err - } - return file.Name(), nil -} - -// RandomName create a name with a 6 digit random number appended to it. -func RandomName(prefix string) string { - return fmt.Sprintf("%s-%06d", prefix, rand.Int31n(1000000)) -} - -// IsStatic returns true iff the given file is a static binary. -func IsStatic(filename string) (bool, error) { - f, err := elf.Open(filename) - if err != nil { - return false, err - } - for _, prog := range f.Progs { - if prog.Type == elf.PT_INTERP { - return false, nil // Has interpreter. - } - } - return true, nil -} - -// TestIndicesForShard returns indices for this test shard based on the -// TEST_SHARD_INDEX and TEST_TOTAL_SHARDS environment vars. -// -// If either of the env vars are not present, then the function will return all -// tests. If there are more shards than there are tests, then the returned list -// may be empty. -func TestIndicesForShard(numTests int) ([]int, error) { - var ( - shardIndex = 0 - shardTotal = 1 - ) - - indexStr, totalStr := os.Getenv("TEST_SHARD_INDEX"), os.Getenv("TEST_TOTAL_SHARDS") - if indexStr != "" && totalStr != "" { - // Parse index and total to ints. - var err error - shardIndex, err = strconv.Atoi(indexStr) - if err != nil { - return nil, fmt.Errorf("invalid TEST_SHARD_INDEX %q: %v", indexStr, err) - } - shardTotal, err = strconv.Atoi(totalStr) - if err != nil { - return nil, fmt.Errorf("invalid TEST_TOTAL_SHARDS %q: %v", totalStr, err) - } - } - - // Calculate! - var indices []int - numBlocks := int(math.Ceil(float64(numTests) / float64(shardTotal))) - for i := 0; i < numBlocks; i++ { - pick := i*shardTotal + shardIndex - if pick < numTests { - indices = append(indices, pick) - } - } - return indices, nil -} diff --git a/runsc/testutil/testutil_runfiles.go b/runsc/testutil/testutil_runfiles.go deleted file mode 100644 index ece9ea9a1..000000000 --- a/runsc/testutil/testutil_runfiles.go +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package testutil - -import ( - "fmt" - "os" - "path/filepath" -) - -// FindFile searchs for a file inside the test run environment. It returns the -// full path to the file. It fails if none or more than one file is found. -func FindFile(path string) (string, error) { - wd, err := os.Getwd() - if err != nil { - return "", err - } - - // The test root is demarcated by a path element called "__main__". Search for - // it backwards from the working directory. - root := wd - for { - dir, name := filepath.Split(root) - if name == "__main__" { - break - } - if len(dir) == 0 { - return "", fmt.Errorf("directory __main__ not found in %q", wd) - } - // Remove ending slash to loop around. - root = dir[:len(dir)-1] - } - - // Annoyingly, bazel adds the build type to the directory path for go - // binaries, but not for c++ binaries. We use two different patterns to - // to find our file. - patterns := []string{ - // Try the obvious path first. - filepath.Join(root, path), - // If it was a go binary, use a wildcard to match the build - // type. The pattern is: /test-path/__main__/directories/*/file. - filepath.Join(root, filepath.Dir(path), "*", filepath.Base(path)), - } - - for _, p := range patterns { - matches, err := filepath.Glob(p) - if err != nil { - // "The only possible returned error is ErrBadPattern, - // when pattern is malformed." -godoc - return "", fmt.Errorf("error globbing %q: %v", p, err) - } - switch len(matches) { - case 0: - // Try the next pattern. - case 1: - // We found it. - return matches[0], nil - default: - return "", fmt.Errorf("more than one match found for %q: %s", path, matches) - } - } - return "", fmt.Errorf("file %q not found", path) -} |